Tinea Types: Common Dermatophyte Infections Case 3 Bullous Tinea Pedis

February 1, 2004
Charles E. Crutchfield III, MD
Charles E. Crutchfield III, MD

A 24-year-old man presented for evaluation of pruritic vesicles on both feet.Ten days earlier, dyshidrotic eczema had been diagnosed by another physicianwho prescribed triamcinolone ointment. The patient reported that the footeruption worsened after the topical medication was applied.

A 24-year-old man presented for evaluation of pruritic vesicles on both feet.Ten days earlier, dyshidrotic eczema had been diagnosed by another physicianwho prescribed triamcinolone ointment. The patient reported that the footeruption worsened after the topical medication was applied.The suspected diagnosis of tinea pedis was confirmed by microscopic examinationof a potassium hydroxide preparation of material from the roof of ablister. In some patients with tinea pedis, the eruption presents in an atypicalmanner with blisters instead of the more common erythematous scaling patches.Anti-inflammatory agents dampen the immune response and exacerbatethe condition.The patient was told to immediately discontinue the corticosteroid, whichwas replaced with a topical antifungal agent. After 3 weeks of twice-daily application,the fungal infection completely resolved.