Cutaneous localized annular chromoblastomycosis.

Chromoblastomycosis (CBM) is a difficult-to-treat dermal mycosis characterized by the presence of round, pigmented, sclerotic bodies formed by black fungi found in polymorphic lesions. According to the morphology of a lesion, different clinical types of the disease have been described. We present three patients who each developed a single, 10-cm diameter, 8 to 15-year-old, well-circumscribed, slow-growing, annular, papulosquamous or papulosquamous-verrucous lesion, with no regression despite the use of topical antifungals.

Enzymatic isolation of Lacazia loboi cells from skin lesions of lobomycosis.

Lacazia loboi is the etiologic agent of Jorge Lobo's disease, a cutaneous and subcutaneous mycosis endemic to Latin America tropical regions and characterized by chronic nodular or keloidal lesions which develop after traumatic events. A new method for the extraction of L. loboi yeast cells from biopsies of lobomycosis skin lesions is presented.