Question: Can you identify this condition?

A 34-year-old man presented with a 3-year history of itchy skin eruptions on the bilateral axillary fossae. Physical examination revealed well-demarcated, thin, bright red plaques, with a few discrete overlying scales. His medical history was unremarkable, and he denied taking any medications.

The most likely diagnosis is

1. Cutaneous candidiasis

2. Dermatophytosis

3. Keratosis follicularis

4. Inverse psoriasis

5. Benign familial chronic pemphigus

Answer on page 903