Trichomycosis Pubis Differential Diagnoses

Updated: Aug 25, 2017
  • Author: Jeannette Rachel Jakus, MD, MBA; Chief Editor: Dirk M Elston, MD  more...
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DDx

Diagnostic Considerations

As pathological separation from other organisms is infrequently performed and treatment is often empirically based on use of drying agents and topical antibiotics, topical powders can be a confounding factor in diagnosis. True fungal infections (piedra) also may confound the diagnosis but may be present as superinfection. Piedra presents with nodularity of the hair shafts that is either tan to white (white piedra) or black (black piedra), as opposed to the yellow or red nodules of trichomycosis. White piedra may have a gelatinous appearance. Sometimes, the diagnosis is made retrospectively after observing rapid response to hygienic measures and topical antibiotics. [15]

Differential Diagnoses