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| http://dx.doi.org/10.1007/s13224-023-01864-7 | DOI Listing |
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Hepatic Perivascular Epithelioid Cell Tumor (PEComa): A Case Report.
Cureus
December 2024
Pathology and Laboratory Medicine, Saint Michael's Medical Center, Newark, USA.
Perivascular epithelioid cell tumors (PEComas) are a rare group of mesenchymal neoplasms composed of perivascular epithelioid cells. While commonly found in the kidney, uterus, and soft tissues, PEComas of the liver are exceedingly rare. We present a case of a PEComa incidentally discovered in a 73-year-old female patient undergoing evaluation for abdominal pain.
View Article and Find Full Text PDFA case report and literature review: leiomyosarcoma or perivascular epithelioid cell neoplasm?
Front Oncol
December 2024
Department of Obstetrics and Gynecology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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. An intraoperative frozen section pathological examination revealed that the mass was likely to be a mesenchymal malignancy.
View Article and Find Full Text PDFRisk Stratification of Miscellaneous Uterine Mesenchymal Neoplasms: The Role of Morphology, Immunohistochemistry, and Molecular Testing.
Adv Anat Pathol
January 2025
Department of Pathology and Laboratory Medicine, Weill Cornell Medicine/New York-Presbyterian Hospital, New York, NY.
Uterine mesenchymal tumors are a diverse group of tumors that can display a broad range of morphologic, immunohistochemical, and molecular profiles and are associated with varied clinical behaviors. In recent years, they have increasingly been classified by their underlying molecular alterations, leading to a more precise separation of diagnostic entities. As their diagnostic criteria have been refined, so too have the features that can be used to predict clinical outcomes.
View Article and Find Full Text PDFRenal PEComa in a young male: A case report and insights from the literature.
Urol Case Rep
January 2025
Department of the Emergency Medicine, State Security Service Military Hospital, Baku, Azerbaijan.
Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal neoplasms, commonly found in the uterus and retroperitoneum. Renal PEComas are exceedingly rare, often posing diagnostic challenges due to their resemblance to renal cell carcinoma (RCC) on imaging. We present the case of an 18-year-old male who presented with non-specific symptoms of fever, chills, and shivering.
View Article and Find Full Text PDFAdrenal PEComa Treated by Surgical Resection and Postoperative Radiotherapy: A Case Report.
Am J Case Rep
December 2024
Department of Pathology, Eskişehir City Hospital, Eskişehir, Turkey.
BACKGROUND Perivascular epitheloid cell neoplasm (PEComa) is a rare mesenchymal tumor that is evaluated in the same tumor family as angiomyolipoma, sugar cell tumor of the lung, and lymphangioleiomyomatosis. Immunohistochemically, the disease can express melanocytic and myogenic markers, such as HMB45, HMSA1, MelanA/Mart1, and actin. The disease can be seen in almost every organ, especially the uterus and retroperitoneum.
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