Histopathology of chromoblastomycosis

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Abstract
A study aimed at determining the histopathologic appearance of chromoblastomycotic lesions was undertaken. Biopsies from 26 patients with the disease were examined. It was found that 23 cases (88.46%) exhibited the organized mixed mycotic granuloma — OMMA —, a granuloma modified by the presence polymorphonuclear neutrophils — PMN's. An equal proportion of cases exhibited pseudoepitheliomatous hyperplasia, with the epithelium playing an important role in the transepidermic elimination of the fungus. Healing of the lesions took place by fibrosis which was observed in 21 (80.77%) patients; this type of reaction was more common in the deeper areas of the dermis.

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