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Malignant uterine/broad-ligament perivascular epithelioid cell tumor (PEComa) coexisting with leiomyoma in a postmenopausal woman: A case report [PDF]

Case Reports in Women's Health
Perivascular epithelioid cell tumor of the uterus is a rare mesenchymal neoplasm with variable malignant potential and nonspecific clinical and radiologic features, often mistaken preoperatively for leiomyoma.
Derar I.I. Ismerat, Barah K.S. Alsalameh, Majd Oweidat, Karam M. Hmidat, Areen Sulaiman, Yara Atawneh, Baraa Z. Zawahra, Izzeddin A. Bakri, Hani Hour   +8 more
doaj   +3 more sources

Perivascular Epithelioid Cell Tumor (PEComa) of the Sigmoid Colon: Case Report and Literature Review [PDF]

Current Oncology
Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal neoplasms characterized by perivascular epithelioid cell proliferation. They can occur in various organs, but colonic PEComas are exceptionally rare, showing diagnostic challenges due to
Gintare Slice, Rokas Stulpinas, Tomas Poskus, Marius Kryzauskas   +3 more
doaj   +3 more sources

Sustained response to pembrolizumab in recurrent perivascular epithelioid cell tumor with elevated expression of programmed death ligand: a case report

Journal of Medical Case Reports, 2021
Background Perivascular epithelioid cell tumors are defined by the World Health Organization as “a collection of rare mesenchymal tumors composed of histologically and immunohistochemically distinctive perivascular epithelioid cells.” Whereas localized ...
Ali McBride, Andrew J. Garcia, Lauren J. Sanders, Kelly Yiu, Lee D. Cranmer, Phillip H. Kuo, Matthew Kay, Andrew S. Kraft   +7 more
doaj   +2 more sources

Perivascular Epithelioid Cell Tumor with Uncertain Malignant Potential Arising in the Round Ligament [PDF]

Diagnostics
A 12-year-old adolescent was diagnosed with a right-sided solid mass in the round ligament of the uterus. The chief complaints were abdominal pain and pelvic discomfort. She underwent laparoscopic tumor resection.
Alina Badlaeva, Anna Tregubova, Diana Kruglyak, Irina Luzhina, Aleksandra Asaturova   +4 more
doaj   +3 more sources

ASPSCR1: TFE3 Fusion‐Positive Epithelioid Angiomyolipoma/PEComa Lacking Melanocytic Markers: A Case Report

IJU Case Reports
Introduction Epithelioid angiomyolipoma is a rare perivascular epithelioid cell tumor subtype with malignant potential. Its morphology mimics renal cell carcinoma, posing diagnostic challenges.
Yuka Kondo, Yoji Nagashima, Kenji Zennami, Megumi Sato, Sayaka Sumiyoshi, Akihiko Sugimoto, Madoka Isomura, Kiyoshi Takahara, Sachiko Minamiguchi   +8 more
doaj   +2 more sources

Malignant Perivascular Epithelioid Cell Tumor of Ovary: A Rare Case Report [PDF]

Journal of Mid-Life Health
Perivascular epithelioid cell tumors (PEComas) have unique morphology comprised perivascular epitheloid cells and express both melanocytic and smooth muscle cell markers.
Anuradha Sharma, Reetika Sharma, Jyoti Bala, Monika Sharma   +3 more
doaj   +2 more sources

Conservative treatment in uterine perivascular epithelioid cell tumor of uncertain malignant potential: a case report [PDF]

Journal of Medical Case Reports
Introduction Perivascular epithelioid cell tumors are uncommon mesenchymal tumors. The genital tract is the most common extrarenal location. Preoperative diagnosis is rarely achieved owing to non-specific symptoms and imaging features.
Ines Zemni, Ines Houissa, Nadia Boujelbene, Saida Sakhri, Imene Sassi, Tarek Ben Dhiab   +5 more
doaj   +2 more sources

Case report: Urachal perivascular epithelioid cell tumor [PDF]

Frontiers in Oncology
BackgroundUrachal tumors are rare in clinical practice, among which urachal adenocarcinoma is the most common. In this study, we report a rare case of urachal perivascular epithelioid cell tumor to improve our understanding of the disease.Case ...
Mengru Liu, Pan Liang, Dongbo Lyu, Bingbing Zhu, Jianbo Gao   +4 more
doaj   +2 more sources

A diminutive perivascular epithelioid cell tumor in the colon [PDF]

DEN Open
Perivascular epithelioid cell tumor (PEComa) is a rare mesenchymal tumor. Some papers have reported that colonoscopy could be used to treat PEComa with a predominantly pedunculated polyp, whereas surgical intervention is often required for cases with ...
Naoki Sugimura, Daizen Hirata, Mineo Iwatate, Santa Hattori, Mikio Fujita, Wataru Sano, Takahiro Fujimori, Yasushi Sano   +7 more
doaj   +2 more sources

Uterine collision tumor (PEComa and endometrioid carcinoma) in a tuberous sclerosis patient: a case report

Frontiers in Oncology, 2023
Perivascular epithelioid cell tumors are very rare mesenchymal neoplasms arising in various locations, such as the female genital tract, kidney, lung, prostate, bladder, pancreas, soft tissues, and bone.
Nektarios Koufopoulos, Ioannis S. Pateras, Christos Koratzanis, Alina-Roxani Gouloumis, Argyro-Ioanna Ieronimaki, Alexandros Fotiou, Ioannis G. Panayiotides, Nikolaos Vrachnis   +7 more
doaj   +1 more source