An Atypical Case of <i>Exophiala Bergeri</i> Chromoblastomycosis in an Immunosuppromised Individual

Chromoblastomycosis (CBM) is a rare chronic, granulomatous mycosis affecting the skin and subcutaneous tissue. It is a deep, slow growing, fungal infection that most often presents with epidermal changes that clinically appear as a hypertrophic and verrucous plaque. We describe an atypical presentation of an immunocompromised male patient, age 76 years, who presented with a 4-month history of painless subcutaneous firm nodules of the left fifth finger. The fungal culture grew <i>Exophiala bergeri</i>, and histopathology showed medlar bodies with lack of pseuodepitheliomatous hyperplasia or epidermal changes commonly seen in CBM. To our knowledge, this is the first case of <i>Exophiala bergeri</i> CBM in the United States, highlighting its unique clinical presentation and expanding the differentials for a subcutaneous nodule.