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Rev Esp Patol ; 52(4): 260-264, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31530411

RESUMO

Epithelioid hemangioendothelioma (EHE) is a malignant vascular tumor that usually affects the liver, lung, bone and deep soft tissues of the extremities or trunk. To our knowledge, only 3 cases in the parotid gland have been reported to date. We report a case of a 62-year-old woman who presented with a 1-year history of a slow-growing, painless mass over the left mandibular angle. Imaging studies showed a 2cm mass over the left parotid gland with peripheral calcifications. The patient underwent a superficial parotidectomy. Sections displayed neoplastic epithelioid cells with cytoplasmic vacuoles containing erythrocytes, surrounded by a myxohyaline stroma. Immunohistochemistry was positive for CD31, CD34, ERG, and factor VIII, but negative for cytokeratin AE1/AE3, CK7, EMA, SMA, and S100. The findings were those of an EHE involving the parotid gland. This case demonstrates an EHE in a rare location and emphasizes the need to consider this tumor when diagnosing uncommon soft tissue tumors of salivary glands.


Assuntos
Hemangioendotelioma Epitelioide/diagnóstico , Neoplasias Parotídeas/diagnóstico , Biomarcadores Tumorais/análise , Diagnóstico Diferencial , Feminino , Hemangioendotelioma Epitelioide/química , Hemangioendotelioma Epitelioide/patologia , Hemangioendotelioma Epitelioide/cirurgia , Hemangiossarcoma/diagnóstico , Humanos , Melanoma/diagnóstico , Pessoa de Meia-Idade , Proteínas de Neoplasias/análise , Neoplasias Parotídeas/química , Neoplasias Parotídeas/patologia , Neoplasias Parotídeas/cirurgia , Neoplasias de Tecidos Moles/diagnóstico , Tomografia Computadorizada por Raios X
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