Arnaud M V, Vieira T L, Moraes M A
Faculdade Estadual de Medicina do Pará, Instituto Evandro Chagas, Belém.
Rev Soc Bras Med Trop. 1996 May-Jun;29(3):271-4. doi: 10.1590/s0037-86821996000300008.
Three cases of subcutaneous phaeohyphomycosis from the state of Pará, Brazil are reported. This is the first time that this form of phaeohyphomycosis is described in northern Brazil. The etiologic agents could not isolated, and the diagnosis in all cases was established only on histopathological basis, particularly through the demonstration of fungal elements in tissue sections. Hyphal fragments and vesicular cells were very numerous and conspicuous in special (Grocott and Fontana-Masson methods) stained sections, in contrast to their apparent scarcity in routine hematoxilin-eosin preparations. The difference was certainly due to the aspect in the latter of the invasive tissue forms: the thin-walled and light brown pigmented organisms stained poorly and were very difficult to distinguish from the tissue components.
报告了来自巴西帕拉州的3例皮下暗色丝孢霉病病例。这是巴西北部首次描述这种形式的暗色丝孢霉病。未分离出病原体，所有病例仅通过组织病理学确诊，特别是通过在组织切片中显示真菌成分。在特殊（格罗科特和丰塔纳-马森方法）染色切片中，菌丝片段和泡状细胞非常多且明显，而在常规苏木精-伊红制剂中则明显稀少。这种差异肯定是由于后者中侵袭性组织形式的外观所致：薄壁且浅棕色色素沉着的生物体染色不佳，很难与组织成分区分开来。
