The most common cause of diaper dermatitis is irritation from wetness and feces, especially in infants with a seborrheic or atopic diathesis. Colonization often occurs with Candida, Proteus, Pseudomonas, and Bacillus faecalis (B ammoniagenes).1 Notably, superficial fungal infection of the groin, tinea cruris, is rare in infancy, but is is common in postpuberal individuals.2,3 One type of tinea cruris, that due to Epidermophyton floccosum, may become epidemic among athletes using common showers and gymnasium facilities.4 We report two cases of tinea cruris, caused by E floccosum, that occurred in otherwise healthy infants.
Report of Cases.—Case 1.—An 18-month-old girl was brought to the dermatology clinic because of a two-month history of diaper rash unresponsive to frequent diaper changes and enhanced hygienic measures. Physical examination showed an erythematous, scaling patch confined to the diaper region (Figure, left). A potassium hydroxide (KOH) preparation of scales from the border
PARRY EL, FOSHEE WS, MARKS JG. Diaper Dermatophytosis. Am J Dis Child. 1982;136(3):273–274. doi:10.1001/archpedi.1982.03970390087023
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