J Clin Aesthet Dermatol. 2020;13(12):12–17. by Khaled Gharib, MD; Asmaa Mostafa, MSc;
Background. Inverse psoriasis is characterized by erythematous nonscaly plaques in intertriginous regions. Similarly, erythrasma, a superficial infection caused by Corynebacterium minutissimum (C. minutissimum), is also found in skin folds with red-brown lesions, making the distinction between psoriasis and erythrasma difficult.