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Bladder perivascular epithelioid cell neoplasm: The importance of immunohistochemistry in the diagnosis of an unusual neoplasm [PDF]

SAGE Open Medical Case Reports, 2021
Perivascular epithelioid cell neoplasms represent a group of uncommon mesenchymal tumours with as yet undiscovered benign counterpart. Although perivascular epithelioid cell neoplasms have been described arising in most organ systems as well as in soft ...
Solange De Noon, Benjamin Ayres, Uday Patel, Rami Issa, Colan Maxwell Ho-Yen   +4 more
doaj   +5 more sources

A Rare Case of a Translocation-Associated Perivascular Epithelioid Cell Neoplasm (PEComa) [PDF]

Case Reports in Pediatrics, 2022
A perivascular epithelioid cell tumor (PEComa) is a rare mesenchymal neoplasm composed of perivascular epithelioid cells with distinctive histologic, immunohistochemical, and genetic features.
Kimberly Pereira, Arati A. Inamdar, Aditi Zaveri, Jonathan E. Teitelbaum, Wendy Shertz, Kenneth Belitsis   +5 more
doaj   +3 more sources

A perivascular epithelioid cell neoplasm of the bladder diagnosed after six years: A case report [PDF]

Urology Case Reports
Perivascular epithelioid cell neoplasm (PEComa) is a rare mesenchymal-derived tumor with specific histological and immunohistochemical manifestations. Given the rarity of bladder PEComa, standardized diagnostic and therapeutic protocols have yet to be ...
Ji-yao Yang, Xiao-rong Yang, Wei-xiang Hei, Yi-dao Liu   +3 more
doaj   +4 more sources

A case report and literature review: leiomyosarcoma or perivascular epithelioid cell neoplasm? [PDF]

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   +4 more sources

Bladder perivascular epithelioid cell neoplasm: Review on clinical features of this rare tumor [PDF]

Urology Annals
Perivascular epithelioid cell neoplasm (PEComa) is a rare mesenchymal tumor composed of histologically and immunohistochemically distinctive perivascular epithelioid cells. They can arise in various localizations such as the bladder.
Zeno Adriaenssens, Robby Peter Anna Lamoury, Sam Tilborghs, Stefan De Wachter, Tim Brits   +4 more
doaj   +3 more sources

Malignant perivascular epithelioid cell neoplasm in the liver: report of a pediatric case [PDF]

Surgical Case Reports, 2021
Background Perivascular epithelioid cell neoplasm (PEComa) in a child is very rare. We herein report the first malignant case of PEComa developing in the liver of a pediatric patient.
Tokuro Baba, Takafumi Kawano, Yusuke Saito, Shun Onishi, Koji Yamada, Waka Yamada, Ryuta Masuya, Kazuhiko Nakame, Yota Kawasaki, Satoshi Iino, Masahiko Sakoda, Mari Kirishima, Tatsuru Kaji, Akihide Tanimoto, Shoji Natsugoe, Takao Ohtsuka, Hiroshi Moritake, Satoshi Ieiri   +17 more
doaj   +2 more sources

Rapidly Progressive Malignant Pelvic Perivascular Epithelioid Cell Neoplasm (PEComa) Associated with Eggerthella lenta Bloodstream Infection [PDF]

Annals of Geriatric Medicine and Research, 2022
Perivascular epithelioid cell tumors (PEComa) are rare mesenchymal neoplasms composed of cells that express melanocytic and myogenic markers and grow around small blood vessels. PEComa often show benign behaviors but can also be highly aggressive.
Stefano Cacciatore, Carla Recupero, Claudia Massaro, Daniele Elmi, Domenico Fusco, Vanessa Badiali, Vincenzo Brandi, Damiano Arciuolo, Fabio Marazzi, Francesco Landi   +9 more
doaj   +2 more sources

Perivascular Epithelioid Cell Neoplasm of the Lung: A Patient Case Report [PDF]

Case Reports in Pathology
Perivascular epithelioid cell tumors (PEComa) are a family of tumors characterized by epithelioid cells and are often found in perivascular spaces. Cases originating in the lungs are highly uncommon.
Calista Sha, Riona Park, Michael Esposito, Paul C. Lee   +3 more
doaj   +2 more sources

A Rare Case of Masquerading Chondrosarcoma with Pathological Fracture of Neck of Femur – A Case Report [PDF]

Journal of Orthopaedic Case Reports
Introduction: Chondrosarcoma is the second most common primary malignant tumor accounting for 20–27% of these. These are malignant cartilaginous tumor found most commonly in the pelvis, followed by the proximal femur.
Ananya Mishra, Pulkit Gupta, Manohar, Hoysala Kantharaju, Dhyaan Bhardwaj, Vipul Jhajharia   +5 more
doaj   +2 more sources

Micronodular PEComa of the appendix: a case report [PDF]

Frontiers in Medicine
Appendiceal micronodular perivascular epithelioid cell tumor (PEComa) is an extremely rare mesenchymal neoplasm. Historically termed “appendiceal granular cell nodules” or “granular degeneration of smooth muscle,” this entity has recently been ...
Li-Jing Jiang, Chao-Qun Wang, Zheng-Guo Xu   +2 more
doaj   +2 more sources