RESUMO
BACKGROUND: Blastomycosis is an uncommon chronic granulomatosis caused by Blastomyces dermatitidis. We present a case with a skin localization that disclosed malignant corticoadenoma. CASE REPORT: A 32-year-old man consulted for inflammatory nodules of the face and lower limbs. The histological examination of a nodule biopsy was in favour of blastomycosis. Ketoconazole treatment was ineffective. Amphotericin B provided cure of the skin lesions. Search for extension disclosed a malignant corticoadrenoma. DISCUSSION: Blastomycosis is very rare in Morocco. The portal is usually the lung. Unique skin involvement is very exceptional. To our knowledge this is the first report of a blastomycosis-corticoadenoma association. The clinical situation may be alarming in immunodepressed subjects. Amphotericin B treatment is indicated.