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  • Title: Squamous cell carcinoma derived from chronic chromoblastomycosis in Brazil.
    Author: Azevedo CM, Marques SG, Santos DW, Silva RR, Silva NF, Santos DA, Resende-Stoianoff MA.
    Journal: Clin Infect Dis; 2015 May 15; 60(10):1500-4. PubMed ID: 25681378.
    Abstract:
    BACKGROUND: Chromoblastomycosis (CBM) is a chronic fungal infection caused mainly by the melanized fungi Fonsecaea species. The chronic lesions may be predisposed to develop into cancer, the most serious complication of the disease. METHODS: In this report, 7 cases of squamous cell carcinoma (SCC) resulting from chronic CBM in patients from Maranhão in the Brazilian Amazon are described. RESULTS: The 7 patients presented with SCC that resulted from chronic CBM, caused by Fonsecaea species >10 years' duration. The malignant lesions occurred independent of the antifungal therapy and all patients underwent curative amputation, except for 1 patient who developed metastases in the inguinal and intra-abdominal lymph nodes and thigh muscles. A majority of previous reports have focused on the malignant transformation of CBM described in only 1 patient each. This is a first report describing a group of patients from a single Brazilian state. CONCLUSIONS: Here, we provide new epidemiologic data on malignant CBM lesions, an endemic disease that is seemingly neglected worldwide. We reinforce the idea that typically chronic lesions may be predisposed to turn malignant.
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