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Type: Artigo de periódico
Title: Ectomesenchymal chondromyxoid tumor: histopathologic and immunohistochemical study of two cases without a chondroid component
Author: Guzman, JMP
de Andrade, BAB
Rizo, VHT
Romanach, MJ
Leon, JE
de Almeida, OP
Abstract: Ectomesenchymal chondromyxoid tumor (ECT) is a rare benign neoplasm usually affecting the anterior dorsum of the tongue. Histopathologically, it is formed by spindle, round and/or polygonal cells embedded in a chondromyxoid matrix. Immunohistochemical positivity for vimentin, S-100 protein, glial fibrillary acid protein and neuron-specific enolase are helpful to confirm the diagnosis. There are 42 cases of ECT of the tongue reported in the English language literature, three of them showing no chondroid matrix. We describe two additional cases of ECT lacking the chondroid component, exhibiting areas of reticulated myxoid and cellular pattern. Considering the microscopical features, ECT can be classified in classic and chondroid-free variants, the latter including the reticulated myxoid and cellular patterns. It is important to consider that the cellular ECT usually exhibits predominance of an infiltrative atypical cellular component that may mimic a malignant tumor. Palma Guzman JM, de Andrade BAB, Rizo VHT, Romanach MJ, Leon JE, de Almeida OP. Ectomesenchymal chondromyxoid tumor: histopathologic and immunohistochemical study of two cases without a chondroid component.
Subject: ectomesenchymal chondromyxoid tumor
Country: EUA
Editor: Wiley-blackwell
Citation: Journal Of Cutaneous Pathology. Wiley-blackwell, v. 39, n. 8, n. 781, n. 786, 2012.
Rights: fechado
Identifier DOI: 10.1111/j.1600-0560.2012.01910.x
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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