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Vascular
DermAtlas_Eleryan_leukocytoclastic vasculitis
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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DermAtlas_Eleryan_leukocytoclastic vasculitis
https://cms.sanovaworks.com/uploads/2023/12/a9ddb6b6ead305cb3e2fe344f428e066-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
DermAtlas_Erythema Annulare Centrifugum-10.30.2023-58764842
Erythema Annulare Centrifugum: Log into your JDD account to access high resolution images and request permissions.
DermAtlas_Erythema Annulare Centrifugum-10.30.2023-58764842
https://cms.sanovaworks.com/uploads/2023/12/9becd12c1bfe7c09b3e8a37419df36af-small.jpg
Condition:
Erythema Annulare Centrifugum
Tags:
Erythema
JDD M5676R1 Urticaria 20_1
Urticaria: This condition consists of a wheal and flare reaction with associated pruritus. The wheal is a papule or plaque that is smooth. The flare is a pink to red color in lighter skin tones and becomes more hyperpigmented as the skin tone deepens in color. Lesions typically last less than 24 hours with no residual pigmentation. Note that If the lesion lasts greater than that and/or heals with hyperpigmentation, urticarial vasculitis should be considered.

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JDD M5676R1 Urticaria 20_1
https://cms.sanovaworks.com/uploads/2023/07/be8c14e506652549fc4f14fb4b1ebbf9-small.jpg
Condition:
Urticaria
Tags:
Erythema
DermAtlas_Leucocytoclastic Vasculitis_B_closeup031824
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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DermAtlas_Leucocytoclastic Vasculitis_B_closeup031824
https://cms.sanovaworks.com/uploads/2024/05/bdc31cd2b0dfc37900475b8d2dab4b7c-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
DermAtlas_Leucocytoclastic Vasculitis_legs_B_031824.1
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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DermAtlas_Leucocytoclastic Vasculitis_legs_B_031824.1
https://cms.sanovaworks.com/uploads/2024/05/8f6aa1eedb3ba10df00f65f2d74a0587-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
DermAtlas_Leucocytoclastic Vasculitis_Legs_B_031824
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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DermAtlas_Leucocytoclastic Vasculitis_Legs_B_031824
https://cms.sanovaworks.com/uploads/2024/05/c32e493611692e7339821a7fa51480d9-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
Venous Leg Ulcer_1_D_2.jpg
Venous Leg Ulcer: Log into your JDD account to access high resolution images and request permissions.
Venous Leg Ulcer_1_D_2.jpg
https://cms.sanovaworks.com/uploads/2022/09/0f2ca3216b135cd1214d7f9833e30d46-small.jpg
Condition:
Venous Leg Ulcer
Tags:
Unclassified
Venous Leg Ulcer_1_D_2closeup.jpg
Venous Leg Ulcer: Log into your JDD account to access high resolution images and request permissions.
Venous Leg Ulcer_1_D_2closeup.jpg
https://cms.sanovaworks.com/uploads/2022/09/5dede9b80f573f7c70a737a485febcd2-small.jpg
Condition:
Venous Leg Ulcer
Tags:
Unclassified
Erythema_C_face_1.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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Erythema_C_face_1.jpg
https://cms.sanovaworks.com/uploads/2022/09/fafdf8fdf5456b5d781de1028a78914b-small.jpg
Condition:
Erythema
Tags:
Erythema
Erythema_Friedman_Profile_2.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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Erythema_Friedman_Profile_2.jpg
https://cms.sanovaworks.com/uploads/2022/09/b5715063a513e0d0b9ee7e65781e0faf-small.jpg
Condition:
Erythema
Tags:
Erythema
erythema type C face.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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erythema type C face.jpg
https://cms.sanovaworks.com/uploads/2022/09/8d6de8e9a377054fc1881229f3a39c62-small.jpg
Condition:
Erythema
Tags:
Erythema
erythema2_D.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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erythema2_D.jpg
https://cms.sanovaworks.com/uploads/2022/09/8f2534883a62425878115d627f13c387-small.jpg
Condition:
Erythema
Tags:
Erythema
erythema_eyes_A_JDD.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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erythema_eyes_A_JDD.jpg
https://cms.sanovaworks.com/uploads/2022/09/89e098ee6e993e8df55fbb6e955697ac-small.jpg
Condition:
Erythema
Tags:
Erythema
atopicdermatitis_fainteyelid_d_Erythema.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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atopicdermatitis_fainteyelid_d_Erythema.jpg
https://cms.sanovaworks.com/uploads/2022/09/5c16deee78a42bd311ea1d7e6a8af9d7-small.jpg
Condition:
Erythema
Tags:
Erythema
AtopicDerm_E_Adusumilli_Erythema.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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AtopicDerm_E_Adusumilli_Erythema.jpg
https://cms.sanovaworks.com/uploads/2022/09/c34cb904bf4b382d25441d3e7bcc9ba5-small.jpg
Condition:
Erythema
Tags:
Erythema
erythema hand type C_.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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erythema hand type C_.jpg
https://cms.sanovaworks.com/uploads/2022/09/d0c93ffca98a8f1fd193d6bb8e251b0d-small.jpg
Condition:
Erythema
Tags:
Erythema
Erythema_Lichen Planus_DIR56338_.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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Erythema_Lichen Planus_DIR56338_.jpg
https://cms.sanovaworks.com/uploads/2022/09/fe82465d4731534ca53b77f1ba6457e7-small.jpg
Condition:
Erythema
Tags:
Erythema
Atopic_Dermatitis_E_Hands_1.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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Atopic_Dermatitis_E_Hands_1.jpg
https://cms.sanovaworks.com/uploads/2022/09/710eb4965320ee34a46b99ecebcc0bcd-small.jpg
Condition:
Erythema
Tags:
Erythema
Erythema_B3_Neck_.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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Erythema_B3_Neck_.jpg
https://cms.sanovaworks.com/uploads/2022/09/d9f3703d54fef7e7cd3c1b093200e9db-small.jpg
Condition:
Erythema
Tags:
Erythema
erythema type D back.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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erythema type D back.jpg
https://cms.sanovaworks.com/uploads/2022/09/460671380dfdbdf12ab2943135648816-small.jpg
Condition:
Erythema
Tags:
Erythema
Erythema_D_Adusumilli_Neck.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

Log into your JDD account to access high resolution images and request permissions.
Erythema_D_Adusumilli_Neck.jpg
https://cms.sanovaworks.com/uploads/2022/09/bd8325c3183d1f5bcb2ec0f6eae1a513-small.jpg
Condition:
Erythema
Tags:
Erythema
erythema_Backtype E_.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

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erythema_Backtype E_.jpg
https://cms.sanovaworks.com/uploads/2022/09/800ea0f0e0206aea9f829348bec2215e-small.jpg
Condition:
Erythema
Tags:
Erythema
Erythema_Friedman_Trunk.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

Log into your JDD account to access high resolution images and request permissions.
Erythema_Friedman_Trunk.jpg
https://cms.sanovaworks.com/uploads/2022/09/bb92c38d63dc8b81e1720408a697c659-small.jpg
Condition:
Erythema
Tags:
Erythema
erythema type c_trunk_2.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

Log into your JDD account to access high resolution images and request permissions.
erythema type c_trunk_2.jpg
https://cms.sanovaworks.com/uploads/2022/09/d6332d876826a7daee0f83509b51c5cc-small.jpg
Condition:
Erythema
Tags:
Erythema
Erythema_D_Adusumilli_Back1.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

Log into your JDD account to access high resolution images and request permissions.
Erythema_D_Adusumilli_Back1.jpg
https://cms.sanovaworks.com/uploads/2022/09/aa66fa90a3b6b3a63f95dc47ff786342-small.jpg
Condition:
Erythema
Tags:
Erythema
Violaceous Erythema_DIR61007.jpg
Erythema: In this collection of images you will see the varying colors that can make up erythema. Irritation and inflammation are often labeled as “red,” but redness may not be visible in darker skin tones. The colors of erythema actually range from bright red, to deep violaceous, to dark blue-gray.

Notice here how erythema is poorly demarcated.

Log into your JDD account to access high resolution images and request permissions.
Violaceous Erythema_DIR61007.jpg
https://cms.sanovaworks.com/uploads/2022/09/6ebbdeaa3d70c97d4ccaa3a3ac4e954e-small.jpg
Condition:
Erythema
Tags:
Erythema
UrticariaA_60942.jpg
Urticaria: This condition consists of a wheal and flare reaction with associated pruritus. The wheal is a papule or plaque that is smooth. The flare is a pink to red color in lighter skin tones and becomes more hyperpigmented as the skin tone deepens in color. Lesions typically last less than 24 hours with no residual pigmentation. Note that If the lesion lasts greater than that and/or heals with hyperpigmentation, urticarial vasculitis should be considered.

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UrticariaA_60942.jpg
https://cms.sanovaworks.com/uploads/2022/09/cbd0b1eeedfc8eee08d75a743ec74474-small.jpg
Condition:
Urticaria
Tags:
Erythema
Urticaria_D_trunk25.jpg
Urticaria: This condition consists of a wheal and flare reaction with associated pruritus. The wheal is a papule or plaque that is smooth. The flare is a pink to red color in lighter skin tones and becomes more hyperpigmented as the skin tone deepens in color. Lesions typically last less than 24 hours with no residual pigmentation. Note that If the lesion lasts greater than that and/or heals with hyperpigmentation, urticarial vasculitis should be considered.

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Urticaria_D_trunk25.jpg
https://cms.sanovaworks.com/uploads/2022/09/cb82c2e9bc2eff09ea164053774459f9-small.jpg
Condition:
Urticaria
Tags:
Erythema
Urticaria_E_4.jpg
Urticaria: This condition consists of a wheal and flare reaction with associated pruritus. The wheal is a papule or plaque that is smooth. The flare is a pink to red color in lighter skin tones and becomes more hyperpigmented as the skin tone deepens in color. Lesions typically last less than 24 hours with no residual pigmentation. Note that If the lesion lasts greater than that and/or heals with hyperpigmentation, urticarial vasculitis should be considered.

Log into your JDD account to access high resolution images and request permissions.
Urticaria_E_4.jpg
https://cms.sanovaworks.com/uploads/2022/09/b04294e0cbfa0c93ce52937afee27a50-small.jpg
Condition:
Urticaria
Tags:
Erythema
urticaria E face_23.jpg
Urticaria: This condition consists of a wheal and flare reaction with associated pruritus. The wheal is a papule or plaque that is smooth. The flare is a pink to red color in lighter skin tones and becomes more hyperpigmented as the skin tone deepens in color. Lesions typically last less than 24 hours with no residual pigmentation. Note that If the lesion lasts greater than that and/or heals with hyperpigmentation, urticarial vasculitis should be considered.

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urticaria E face_23.jpg
https://cms.sanovaworks.com/uploads/2022/09/c75e5d3177ee3910e2f3ef64a140e336-small.jpg
Condition:
Urticaria
Tags:
Erythema
urticaria type E neck_24.jpg
Urticaria: This condition consists of a wheal and flare reaction with associated pruritus. The wheal is a papule or plaque that is smooth. The flare is a pink to red color in lighter skin tones and becomes more hyperpigmented as the skin tone deepens in color. Lesions typically last less than 24 hours with no residual pigmentation. Note that If the lesion lasts greater than that and/or heals with hyperpigmentation, urticarial vasculitis should be considered.

Log into your JDD account to access high resolution images and request permissions.
urticaria type E neck_24.jpg
https://cms.sanovaworks.com/uploads/2022/09/2e5640676b6d728961097b0b581fd6ac-small.jpg
Condition:
Urticaria
Tags:
Erythema
dermatographism type A_11.jpg
Urticaria: Dermatographism: Dermatographism is a type of physical urticaria that occurs after stroking or rubbing the skin and will result in linear wheals and a flare.

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dermatographism type A_11.jpg
https://cms.sanovaworks.com/uploads/2022/09/7d1fbd4dddda6bcc1850bad4d51e1796-small.jpg
Condition:
Urticaria: Dermatographism
Tags:
Erythema
Dermatographism_A_Benesh_1.jpg
Urticaria: Dermatographism: Dermatographism is a type of physical urticaria that occurs after stroking or rubbing the skin and will result in linear wheals and a flare.

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Dermatographism_A_Benesh_1.jpg
https://cms.sanovaworks.com/uploads/2022/09/8e50229e65eaaf367aeb80b854949659-small.jpg
Condition:
Urticaria: Dermatographism
Tags:
Erythema
Dermagraph_A_Cohen.jpg
Urticaria: Dermatographism: Dermatographism is a type of physical urticaria that occurs after stroking or rubbing the skin and will result in linear wheals and a flare.

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Dermagraph_A_Cohen.jpg
https://cms.sanovaworks.com/uploads/2022/09/4064f7a8a47af4ec09dbcf0ff4e507f1-small.jpg
Condition:
Urticaria: Dermatographism
Tags:
Erythema
DermatographismPreTest_C_Adusumilli4.jpg
Urticaria: Dermatographism: Dermatographism is a type of physical urticaria that occurs after stroking or rubbing the skin and will result in linear wheals and a flare.

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DermatographismPreTest_C_Adusumilli4.jpg
https://cms.sanovaworks.com/uploads/2022/09/f3d9106403a801f0d1b53c7706a279c8-small.jpg
Condition:
Urticaria: Dermatographism
Tags:
Erythema
Dermatographism_D_Ezekwe_Back.jpg
Urticaria: Dermatographism: Dermatographism is a type of physical urticaria that occurs after stroking or rubbing the skin and will result in linear wheals and a flare.

Log into your JDD account to access high resolution images and request permissions.
Dermatographism_D_Ezekwe_Back.jpg
https://cms.sanovaworks.com/uploads/2022/09/b47bbff632e0ad415a567961390f7b6f-small.jpg
Condition:
Urticaria: Dermatographism
Tags:
Erythema
Erythena_Ab_Igne_A_33.jpg
Erythema Ab Igne: Erythema ab igne presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches that appear in heat exposed areas (eliciting this part of the history is of the utmost importance to delineate from livedo reticularis, which can look similar in darker skin tones). Additional symptoms may include mild itching and burning.

Over time, or with recurrent heat exposure, lesions evolve in dusky hyperpigmentation. In late-stage, presence of epidermal atrophy and poikiloderma may also be appreciated which is highlighted by the hypopigmented macules seen in the last image. In darker skin tones, erythema ab igne may be difficult to differentiate from livedo reticularis as the latter also presents as reticulated patches but less dark brown and/or more violaceous in color. Discerning factors of livedo reticularis, aside from history, include change in intensity of color with elevation of the affected extremities and the confluent and often bilateral presentation.

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Erythena_Ab_Igne_A_33.jpg
https://cms.sanovaworks.com/uploads/2022/09/a407af5edd384443ec8655f3312d93eb-small.jpg
Condition:
Erythema Ab Igne
Tags:
Erythema
ErythemaAbIgne_D_leg.jpg
Erythema Ab Igne: Erythema ab igne presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches that appear in heat exposed areas (eliciting this part of the history is of the utmost importance to delineate from livedo reticularis, which can look similar in darker skin tones). Additional symptoms may include mild itching and burning.

Over time, or with recurrent heat exposure, lesions evolve in dusky hyperpigmentation. In late-stage, presence of epidermal atrophy and poikiloderma may also be appreciated which is highlighted by the hypopigmented macules seen in the last image. In darker skin tones, erythema ab igne may be difficult to differentiate from livedo reticularis as the latter also presents as reticulated patches but less dark brown and/or more violaceous in color. Discerning factors of livedo reticularis, aside from history, include change in intensity of color with elevation of the affected extremities and the confluent and often bilateral presentation.

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ErythemaAbIgne_D_leg.jpg
https://cms.sanovaworks.com/uploads/2022/09/a57cfb05b0588ecd71817558616b15c9-small.jpg
Condition:
Erythema Ab Igne
Tags:
Erythema
ErythemaAbIgne_E_leg.jpg
Erythema Ab Igne: Erythema ab igne presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches that appear in heat exposed areas (eliciting this part of the history is of the utmost importance to delineate from livedo reticularis, which can look similar in darker skin tones). Additional symptoms may include mild itching and burning.

Over time, or with recurrent heat exposure, lesions evolve in dusky hyperpigmentation. In late-stage, presence of epidermal atrophy and poikiloderma may also be appreciated which is highlighted by the hypopigmented macules seen in the last image. In darker skin tones, erythema ab igne may be difficult to differentiate from livedo reticularis as the latter also presents as reticulated patches but less dark brown and/or more violaceous in color. Discerning factors of livedo reticularis, aside from history, include change in intensity of color with elevation of the affected extremities and the confluent and often bilateral presentation.

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ErythemaAbIgne_E_leg.jpg
https://cms.sanovaworks.com/uploads/2022/09/1c10e5dadcb29c98f5c951433c262e8f-small.jpg
Condition:
Erythema Ab Igne
Tags:
Erythema
Erythena_Ab_Igne_A_Closeup33.jpg
Erythema Ab Igne: Erythema ab igne presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches that appear in heat exposed areas (eliciting this part of the history is of the utmost importance to delineate from livedo reticularis, which can look similar in darker skin tones). Additional symptoms may include mild itching and burning.

Over time, or with recurrent heat exposure, lesions evolve in dusky hyperpigmentation. In late-stage, presence of epidermal atrophy and poikiloderma may also be appreciated which is highlighted by the hypopigmented macules seen in the last image. In darker skin tones, erythema ab igne may be difficult to differentiate from livedo reticularis as the latter also presents as reticulated patches but less dark brown and/or more violaceous in color. Discerning factors of livedo reticularis, aside from history, include change in intensity of color with elevation of the affected extremities and the confluent and often bilateral presentation.

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Erythena_Ab_Igne_A_Closeup33.jpg
https://cms.sanovaworks.com/uploads/2022/09/f6b6a8fc6267690ce237e85c2a277f60-small.jpg
Condition:
Erythema Ab Igne
Tags:
Erythema
ErythemaAbIgne_D_leg_closeup.jpg
Erythema Ab Igne: Erythema ab igne presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches that appear in heat exposed areas (eliciting this part of the history is of the utmost importance to delineate from livedo reticularis, which can look similar in darker skin tones). Additional symptoms may include mild itching and burning.

Over time, or with recurrent heat exposure, lesions evolve in dusky hyperpigmentation. In late-stage, presence of epidermal atrophy and poikiloderma may also be appreciated which is highlighted by the hypopigmented macules seen in the last image. In darker skin tones, erythema ab igne may be difficult to differentiate from livedo reticularis as the latter also presents as reticulated patches but less dark brown and/or more violaceous in color. Discerning factors of livedo reticularis, aside from history, include change in intensity of color with elevation of the affected extremities and the confluent and often bilateral presentation.

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ErythemaAbIgne_D_leg_closeup.jpg
https://cms.sanovaworks.com/uploads/2022/09/0d2e7d09c81617f4f8ff08c512724b54-small.jpg
Condition:
Erythema Ab Igne
Tags:
Erythema
ErythemaAbIgne_E_legcloseup.jpg
Erythema Ab Igne: Erythema ab igne presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches that appear in heat exposed areas (eliciting this part of the history is of the utmost importance to delineate from livedo reticularis, which can look similar in darker skin tones). Additional symptoms may include mild itching and burning.

Over time, or with recurrent heat exposure, lesions evolve in dusky hyperpigmentation. In late-stage, presence of epidermal atrophy and poikiloderma may also be appreciated which is highlighted by the hypopigmented macules seen in the last image. In darker skin tones, erythema ab igne may be difficult to differentiate from livedo reticularis as the latter also presents as reticulated patches but less dark brown and/or more violaceous in color. Discerning factors of livedo reticularis, aside from history, include change in intensity of color with elevation of the affected extremities and the confluent and often bilateral presentation.

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ErythemaAbIgne_E_legcloseup.jpg
https://cms.sanovaworks.com/uploads/2022/09/2d7ea6530c41d91292bdd95e890812ec-small.jpg
Condition:
Erythema Ab Igne
Tags:
Erythema
livedo reticularis type A_Leg.jpg
Livedo Reticularis: Livedo reticularis presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches. It is often seen on the lower extremities but can involve the upper extremities and trunk. The differential diagnosis should include erythema ab igne, polyarteritis nodosa, and macular arteritis.

The pattern of livedo reticularis is often mistaken for erythema ab igne. Interestingly livedo reticularis may worsen with cold exposure, whereas erythema ab igne thrives from excess heat.

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livedo reticularis type A_Leg.jpg
https://cms.sanovaworks.com/uploads/2022/09/89bf9d65577aa3c09f25537513951297-small.jpg
Condition:
Livedo Reticularis
Tags:
Erythema
Livedo_Reticularis_A_leg.jpg
Livedo Reticularis: Livedo reticularis presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches. It is often seen on the lower extremities but can involve the upper extremities and trunk. The differential diagnosis should include erythema ab igne, polyarteritis nodosa, and macular arteritis.

The pattern of livedo reticularis is often mistaken for erythema ab igne. Interestingly livedo reticularis may worsen with cold exposure, whereas erythema ab igne thrives from excess heat.

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Livedo_Reticularis_A_leg.jpg
https://cms.sanovaworks.com/uploads/2022/09/b8b05d600a45e8878a82880e8eda7207-small.jpg
Condition:
Livedo Reticularis
Tags:
Erythema
LivedoReticularis_D_Leg.jpg
Livedo Reticularis: Livedo reticularis presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches. It is often seen on the lower extremities but can involve the upper extremities and trunk. The differential diagnosis should include erythema ab igne, polyarteritis nodosa, and macular arteritis.

The pattern of livedo reticularis is often mistaken for erythema ab igne. Interestingly livedo reticularis may worsen with cold exposure, whereas erythema ab igne thrives from excess heat.

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LivedoReticularis_D_Leg.jpg
https://cms.sanovaworks.com/uploads/2022/09/eb24ffeb56057692645919b2c1490164-small.jpg
Condition:
Livedo Reticularis
Tags:
Erythema
livedo reticularis type A_Leg_Closup.jpg
Livedo Reticularis: Livedo reticularis presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches. It is often seen on the lower extremities but can involve the upper extremities and trunk. The differential diagnosis should include erythema ab igne, polyarteritis nodosa, and macular arteritis.

The pattern of livedo reticularis is often mistaken for erythema ab igne. Interestingly livedo reticularis may worsen with cold exposure, whereas erythema ab igne thrives from excess heat.

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livedo reticularis type A_Leg_Closup.jpg
https://cms.sanovaworks.com/uploads/2022/09/c2dbf6dd2269af2f46ba40c457141e64-small.jpg
Condition:
Livedo Reticularis
Tags:
Erythema
Livedo_Reticularis_A_Closeup.jpg
Livedo Reticularis: Livedo reticularis presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches. It is often seen on the lower extremities but can involve the upper extremities and trunk. The differential diagnosis should include erythema ab igne, polyarteritis nodosa, and macular arteritis.

The pattern of livedo reticularis is often mistaken for erythema ab igne. Interestingly livedo reticularis may worsen with cold exposure, whereas erythema ab igne thrives from excess heat.

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Livedo_Reticularis_A_Closeup.jpg
https://cms.sanovaworks.com/uploads/2022/09/6dbedcc42e0659af887c97154ba1fabe-small.jpg
Condition:
Livedo Reticularis
Tags:
Erythema
LivedoReticularis_D_Legcloseup.jpg
Livedo Reticularis: Livedo reticularis presents as reticulated or mottled red, violaceous, brown, or hyperpigmented patches. It is often seen on the lower extremities but can involve the upper extremities and trunk. The differential diagnosis should include erythema ab igne, polyarteritis nodosa, and macular arteritis.

The pattern of livedo reticularis is often mistaken for erythema ab igne. Interestingly livedo reticularis may worsen with cold exposure, whereas erythema ab igne thrives from excess heat.

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LivedoReticularis_D_Legcloseup.jpg
https://cms.sanovaworks.com/uploads/2022/09/c77ff87f9465f2c520fd1e07f4ed91ee-small.jpg
Condition:
Livedo Reticularis
Tags:
Erythema
Retiform_purpura_DIR 61350.jpg
Retiform Purpura: Notice the angulated, fragmented net-like shape of retiform purpura and how it displays the vascular architecture in the skin. This pattern is not the same as the interlaced pattern of livedo reticularis (which is typically blanchable) and may only be seen at the edge of only a few lesions.

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Retiform_purpura_DIR 61350.jpg
https://cms.sanovaworks.com/uploads/2022/09/a9150f63c126ffd5c6e28978a1344e42-small.jpg
Condition:
Retiform Purpura
Tags:
Purpura
facial retiform purpura d.jpg
Retiform Purpura: Notice the angulated, fragmented net-like shape of retiform purpura and how it displays the vascular architecture in the skin. This pattern is not the same as the interlaced pattern of livedo reticularis (which is typically blanchable) and may only be seen at the edge of only a few lesions.

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facial retiform purpura d.jpg
https://cms.sanovaworks.com/uploads/2022/09/f441f3531ad4cc1ca99ada80b11302ab-small.jpg
Condition:
Retiform Purpura
Tags:
Purpura
retiform purpura type d.jpg
Retiform Purpura: Notice the angulated, fragmented net-like shape of retiform purpura and how it displays the vascular architecture in the skin. This pattern is not the same as the interlaced pattern of livedo reticularis (which is typically blanchable) and may only be seen at the edge of only a few lesions.

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retiform purpura type d.jpg
https://cms.sanovaworks.com/uploads/2022/09/9bed5c64ea41be8a027d510b6c64e264-small.jpg
Condition:
Retiform Purpura
Tags:
Purpura
Retiform_D_LegJDD_.jpg
Retiform Purpura: Notice the angulated, fragmented net-like shape of retiform purpura and how it displays the vascular architecture in the skin. This pattern is not the same as the interlaced pattern of livedo reticularis (which is typically blanchable) and may only be seen at the edge of only a few lesions.

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Retiform_D_LegJDD_.jpg
https://cms.sanovaworks.com/uploads/2022/09/041fdf8dd426b6c4086c52fcbfeb3db1-small.jpg
Condition:
Retiform Purpura
Tags:
Erythema
Leukocytoclastic Vasculitis_A_Ezekwe.jpg
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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Leukocytoclastic Vasculitis_A_Ezekwe.jpg
https://cms.sanovaworks.com/uploads/2022/09/7886af2aed23fcbfde8aed0a833ca094-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
LCV_B_Leg1.jpg
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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LCV_B_Leg1.jpg
https://cms.sanovaworks.com/uploads/2022/09/9841cd72d8abb52fae6a3f241e88dc33-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
Leukocytoclastic Vasculitis_type D.jpg
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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Leukocytoclastic Vasculitis_type D.jpg
https://cms.sanovaworks.com/uploads/2022/09/cdd4a70e884fb520dc2d3b2552cc5fb1-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
Leukocytoclastic Vasculitis type E legs.jpg
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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Leukocytoclastic Vasculitis type E legs.jpg
https://cms.sanovaworks.com/uploads/2022/09/d6b708392e1e6a3d69503e2eef88e4c2-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
Leukocytoclastic Vasculitis_A_Ezekwe_closeup.jpg
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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Leukocytoclastic Vasculitis_A_Ezekwe_closeup.jpg
https://cms.sanovaworks.com/uploads/2022/09/ddf7251e4e10ed99eaa486b554552c9b-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
Leukocytoclastic Vasculitis_B_closeup.jpg
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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Leukocytoclastic Vasculitis_B_closeup.jpg
https://cms.sanovaworks.com/uploads/2022/09/9bddb64062ac9d858f833726aea1d0b5-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
Leukocytoclastic Vasculitis_type D_Closeup.jpg
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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Leukocytoclastic Vasculitis_type D_Closeup.jpg
https://cms.sanovaworks.com/uploads/2022/09/157e872059b44e5cb7183cace889f58a-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
Leukocytoclastic Vasculitis type E legs_closeup.jpg
Leukocytoclastic Vasculitis: Most commonly seen on the lower extremities, the lesions of leukocytoclastic vasculitis (LCV) are red to deep purple, as seen here and are nonblanchable (a must do bedside diagnostic). LCV also appears on dependent areas, like the back, if the patient is in the hospital. Resolved lesions may result in post-inflammatory hyperpigmentation and hemosiderin deposition. Note that bullae may be present within lesions.

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Leukocytoclastic Vasculitis type E legs_closeup.jpg
https://cms.sanovaworks.com/uploads/2022/09/6aa2b84c56bece3d5b8f123be6b795a3-small.jpg
Condition:
Leukocytoclastic Vasculitis
Tags:
Purpura
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