Concluding Remarks
The prevalence of toenail onychomycosis is highly associated
with the presence of pre-existing tinea pedis. In fact a number
of surveys, and a recent post hoc analysis of two large clinical
studies have shown that the two diseases co-exist in at least
one third of patients.7,10,11,22 In our experience, the reported
co-existence of the two diseases is likely to be significantly
under-recorded as many patients are not aware they have
a fungal infection, or may not seek medical treatment. As a
result, we recommend that all patients with toenail onychomycosis
should be examined for tinea pedis. All areas of the
feet should be inspected for tinea, including plantar feet, toe
webs and lateral/medial feet. Shoe evaluation should also be
part of any toe onychomycosis/tinea pedis assessment.
When managing patients with onychomycosis, it is important
to treat any co-existing tinea pedis. The benefits in treating both
diseases has now been clearly demonstrated.
DISCLOSUREs
Dr. Scher has served as paid consultant to Valeant Pharmaceuticals
North America LLC.
ACKNOWLEDGMENTS
The authors acknowledge Brian Bulley, MSc, of Inergy Limited for
medical writing support. Valeant Pharmaceuticals North America
LLC funded Inergy’s activities pertaining to this manuscript.
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AUTHOR CORRESPONDENCE
Shari R. Lipner MD PhD…................................ shl9032@med.cornell.edu