Results 91 to 100 of about 2,403 (160)

Huge soft tissue PEComa with aggressive lung and bone metastases

, 2017
Perivascular epithelioid cell tumors (PEComas) are uncommon mesenchymal tumors characterized by the presence of both myogenic and melanocytic markers, and huge soft tissue PEComas are even rarer.
Sheng-Fung Lin, Hui-Hua Hsiao, Shih-Feng Cho, Hui-Ching Wang, Yi-Chang Liu, Yu-Fen Tsai, Ta-Chih Liu, Shih-Hao Tang   +7 more
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Perivascular Endothelial Carcinomas: An Uncommon Hepatic Tumor Requiring Resection

Annals of Internal Medicine: Clinical Cases
Perivascular endothelial carcinomas (PEComas), rare mesenchymal tumors, often originate in the genitourinary system and seldom occur in the liver. Typically benign and asymptomatic, they mimic hepatocellular carcinoma on imaging studies.
Christopher J. Costa, Minh Thu T. Nguyen, Elsayed Ibrahim, Alexander Potashinsky   +3 more
doaj   +1 more source

[A uterine pecoma: a case report].

, 1999
The authors describe the first ever reported case of a malignant pecoma of the uterus infiltrating the ovary, the tube and two bowel loops. This extremely rare tumour usually shows a benign behaviour and seems to arise from the perivascular epithelioid ...
D'ANDREA, Vito, DI MATTEO, Filippo Maria, M. Spyrou, A. Modesti, SCARPA, Susanna, F. Biancari, L. P. Ruco, A. Dibra, R. Sarmiento, G. Lippolis, B. M. Wedard, DE ANTONI, Enrico, A. Marzullo, L. Falvo   +13 more
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A case report and literature review: leiomyosarcoma or perivascular epithelioid cell neoplasm?

Frontiers in Oncology
The distinction between a uterine leiomyosarcoma (uLMS) and a perivascular epithelioid cell neoplasm (PEComa) can be quite challenging. Here we report a 39-year-old woman who underwent a hysteroscopic myomectomy.
Zheng Chen, Zheng Chen, Zheng Chen, Xuan Zheng, Xuan Zheng, Xuan Zheng, Qin Lin, Qin Lin, Qin Lin   +8 more
doaj   +1 more source

Perivascular epithelioid cell tumor (PEComa) of the uterus: A case report

, 2015
Background. Perivascular epithelioid cell tumors (PEComas) are a rare family of mesenchymal tumors arising in a wide array of anatomic locations and characterized by coexpression of melanocytic and muscle markers.
Fiche, M., Achtari, C., Caseiro Silverio, P., Stravodimou, A.   +3 more
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PEComa of the talus: a unique case of a soft tissue tumor within bone

, 2019
Introduction: Perivascular epithelioid cell tumor (PEComa) is a family of rare mesenchymal tumors composed of histologically and immunohistochemically distinctive perivascular epithelioid cells (PECs).
Gebhart, Michaël, Coltofeanu, Andrei
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Hepatic perivascular epithelioid cell tumor: a retrospective analysis of 36 cases

Frontiers in Oncology
Background and aimsHepatic perivascular epithelioid cell tumor (PEComa) is a rare type of mesenchymal neoplasm and lacks systematic reports. The aim was to analyze the features of hepatic PEComa in order to provide our own experience for diagnosis and ...
Min Ji, Yuchen Zhang, Shuaibing Liu, Menghui Zhang, Bingbing Qiao   +4 more
doaj   +1 more source

Ceus features of liver pecoma: a case report and literature review

Perivascular epithelioid cell neoplasms (PEComas) and epithelioid angiomyolipomas (EAMLs) are two different denominations for the same “mesenchymal tumor composed of histologically and immunohistochemically distinctive perivascular epithelioid cells ...
Brighenti, Alice, Ruggeri, Eugenio, Marcellini, Marco Marcello, Ercolani, Giorgio, Loiacono, Rossella, Serra, Carla, Boccatonda, Andrea, Felicani, Cristina   +7 more
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TFE3-rearranged PEComa-like neoplasm of the kidney with carcinoma-like morphology and rapid progression: a case report

World Journal of Surgical Oncology
Background TFE3-rearranged perivascular epithelioid cell tumor (PEComa)-like neoplasm is a recently recognized mesenchymal tumor with melanocytic immunophenotype and TFE3 gene rearrangement, but often lacking smooth muscle differentiation.
Zhao-Jing Chen, Juan Cai, Lei Li, Jiale Ji, Xiao-Chu Yan, Xiu-Wu Bian, Mian-Fu Cao, Guang-Jie Duan   +7 more
doaj   +1 more source

Synchronous occurrence of multiple focal nodular hyperplasia and huge hepatic Perivascular epithelioid cells tumor (PEComa) in young woman after oral contraceptive use – is there a common pathogenesis? [PDF]

, 2012
The association of focal nodular hyperplasia (FNH) and various neoplasms was described, but coincidence of multiple FNH and hepatic perivascular epithelioid cells tumor (PEComa) has not been reported.
Sporny, Stanisław, Hogendorf, Piotr, Durczyński, Adam, Szymański, Dariusz, Strzelczyk, Janusz   +4 more
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