CHROMOBLASTOMYCOSIS

Abstract

Chromoblastomycosis is a subcutaneous mycosis caused by the traumatic inoculation of dematiaceous fungi. Fonsecaea pedrosoi is the most prevalent species in tropical regions of Latin America, while Cladophialophora carrionii is more common in arid regions of India and Thailand. Approximately 90% of cases occur in men between the ages of 20 and 60, predominantly affecting agricultural and mining workers. The most commonly affected anatomical sites are those subject to frequent trauma, such as the hands, feet, knees, and elbows. The verrucous variant is the most frequent clinical presentation, characterized by exophytic verrucous plaques with black dots on the surface; however, other less common variants have also been reported. In this case, we present a patient with an annular and cicatricial variant of chromoblastomycosis, emphasizing the importance of considering infectious diseases in the differential diagnosis of annular skin lesions.