Perivascular epithelioid cell tumors (PEComas) are a family of rare mesenchymal neoplasms, including angiomyolipoma, clear-cell "sugar" tumor of the lung and extrapulmonary sites, lymphangioleiomyomatosis, clear-cell myomelanocytic tumor of the falciform ligament/ligamentum teres, and clear-cell tumors at various other anatomic sites.These tumors are characterized by a proliferation of epithelioid cells with clear to eosinophilic cytoplasm, perivascular distribution, and coexpression of myogenic and melanocytic markers.PEComas show a female predominance, occur with some frequency in the gynecological tract, and have an unpredictable biological behavior.We report a case of a huge malignant PEComa arising from the uterine cervix and vagina. To the best of our knowledge, only 6 cases of PEComa in the cervix and 2 cases in the vagina have been reported in the literature. © 2013 Elsevier GmbH.
A huge malignant perivascular epithelioid cell tumor (PEComa) of the uterine cervix and vagina
Mainenti Pier Paolo;
2014
Abstract
Perivascular epithelioid cell tumors (PEComas) are a family of rare mesenchymal neoplasms, including angiomyolipoma, clear-cell "sugar" tumor of the lung and extrapulmonary sites, lymphangioleiomyomatosis, clear-cell myomelanocytic tumor of the falciform ligament/ligamentum teres, and clear-cell tumors at various other anatomic sites.These tumors are characterized by a proliferation of epithelioid cells with clear to eosinophilic cytoplasm, perivascular distribution, and coexpression of myogenic and melanocytic markers.PEComas show a female predominance, occur with some frequency in the gynecological tract, and have an unpredictable biological behavior.We report a case of a huge malignant PEComa arising from the uterine cervix and vagina. To the best of our knowledge, only 6 cases of PEComa in the cervix and 2 cases in the vagina have been reported in the literature. © 2013 Elsevier GmbH.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
