INTRODUCTION
Confluent and reticulated papillomatosis (CARP) is a chronic dermatologic condition characterized by multiple hyperpigmented papules that converge to form plaques or patches and reticulate peripherally. The etiology of CARP remains unclear, but current evidence most strongly supports bacterial association and abnormal keratinization.1 Oral antibiotics are the most frequently used first-line therapy for treating CARP.2 The authors present a case of CARP treated successfully with topical fixed-dose triple-combination clindamycin phosphate 1.2% / adapalene 0.15% / benzoyl peroxide 3.1% (CAB) gel as a novel treatment.
Case Presentation
A 15-year-old Caucasian male presented with an itchy, discolored rash on his epigastric region for the past several months. Physical examination revealed confluent and reticulated brown patches on the epigastric lesions (Figure 1). A punch biopsy was performed with a clinical differential diagnosis that included tinea versicolor and CARP. Histopathology revealed hyperkeratosis, papillomatosis, and mild acanthosis, confirming the diagnosis of CARP. The patient demonstrated refractory
Case Presentation
A 15-year-old Caucasian male presented with an itchy, discolored rash on his epigastric region for the past several months. Physical examination revealed confluent and reticulated brown patches on the epigastric lesions (Figure 1). A punch biopsy was performed with a clinical differential diagnosis that included tinea versicolor and CARP. Histopathology revealed hyperkeratosis, papillomatosis, and mild acanthosis, confirming the diagnosis of CARP. The patient demonstrated refractory






