Results 71 to 80 of about 2,403 (160)

GPNMB immunohistochemistry is a useful ancillary tool for the diagnosis of pulmonary lymphangioleiomyomatosis

Histopathology, Volume 88, Issue 3, Page 698-709, February 2026.
We evaluated the diagnostic utility of GPNMB immunohistochemistry in LAM. GPNMB showed strong expression in LAM cells, while the differential diagnostic mimics showed no or only low expression. Based on its 100% sensitivity and specificity in our cohort, GPNMB is a highly reliable immunohistochemical marker for the diagnosis of LAM.
Fatime Szalai, Judit Pápay, Katalin Dezső, Levente Kuthi, Anna Sebestyén, András Khoór, Ildikó Krencz   +6 more
wiley   +1 more source

Implications of imaging, morphologic, and immunohistochemical features of pancreatic perivascular epithelioid cell tumor: case report and comprehensive literature review

Diagnostic Pathology
Background Perivascular epithelioid cell tumor (PEComa) of the pancreas is a rare tumor of pancreatic mesenchymal origin with malignant potential.
Peipei He, Chaofeng Yang, Kexin Chen, Jinhong Yu, Yang Li   +4 more
doaj   +1 more source

Pecoma of The Talus, a Rare Case and The Literature Review [PDF]

Perivasküler epiteloid hücreli neoplazmlar (PEComalar), perivasküler epiteloid hücrelerden (PEC’ler) gelişen mezenkimal tümörlerdir. Yumuşak doku, iç organlar ve deri en çok karşılaşılan vücut bölgeleridir.
Korucu, Berke Cenktuğ, Kacan, Turgut, Koçak, Cahit   +2 more
core   +1 more source

Malignant PEComa: a case report with emphasis on clinical and morphological criteria [PDF]

, 2011
Background Malignant perivascular epitheliod cell tumor (PEComa) is a very rare entity composed of distinctive perivascular epitheliod cells with variable immunoreactivity for melanocytic and muscle markers. At present this neoplasm does not have a known
Angelucci Domenico, Cianci Roberta, D'Aulerio Alberto, Pulcini Daniela, Domenico Risio, Risio Domenico, Legnini Margherita, Roberta Cianci, Claudi Roberta, Paolo Innocenti, Federico Selvaggi, Domenico Angelucci, Margherita Legnini, Selvaggi Federico, Cotellese Roberto, Roberto Cotellese, Daniela Pulcini, Alberto D'Aulerio, Innocenti Paolo, Roberta Claudi   +19 more
core   +1 more source

Case report: Liver PEComa after kidney transplantation in recipient with tuberous sclerosis complex

Frontiers in Oncology
IntroductionPerivascular epithelioid cell tumors (PEComa) are rare tumors of mesenchymal origin that exhibit perivascular epithelioid cell phenotype. One of its most common localizations is uterus, whereas only a few studies reported PEComa localization ...
Marcin Dymkowski, Paulina Kalman, Piotr Niecikowski, Łukasz Koperski, Maciej Kosieradzki   +4 more
doaj   +1 more source

TFE3‐Rearranged PEComa(‐Like Neoplasm) of the Chest Wall Diagnosed by Fine‐Needle Aspiration: A Case Report

Diagnostic Cytopathology, Volume 54, Issue 1, Page E1-E5, January 2026.
ABSTRACT We report a rare TFE3‐rearranged perivascular epithelioid cell tumor (PEComa) of the parasternal chest wall diagnosed preoperatively by fine‐needle aspiration (FNA) cytology. The smears and cell block showed epithelioid cells with clear to granular cytoplasm and prominent nucleoli.
Shah Dev, Matthew Miller, Tom Hu, Cindy McGrath, Roseann I. Wu   +4 more
wiley   +1 more source

Recent developments in eosinophilic renal neoplasms: what's new, true and important?

Histopathology, Volume 88, Issue 1, Page 166-192, January 2026.
Recent developments and acquired knowledge on newer renal entities with eosinophilic cytoplasm opened insights into the clinical, pathological, immunohistochemical, molecular, epidemiological aspects, and the prognosis of these entities. We emphasize the role of routine morphology, aided by appropriate and select immunohistochemistry, as essential keys
Kiril Trpkov, Farshid Siadat, Rola Saleeb   +2 more
wiley   +1 more source

Malignant perivascular epithelioid cell tumor of the orbit: Report of a case and review of literature

Indian Journal of Ophthalmology, 2017
Perivascular epithelioid cell tumor (PEComa) is a rare neoplasm considered to arise from myomelanocytic cell lineage. The uterus is reportedly the most common site to be involved. Orbital PEComa is extremely rare with only two cases reported till date. A
Md Shahid Alam, Bipasha Mukherjee, S Krishnakumar, Jyotirmay Biswas   +3 more
doaj   +1 more source

Epithelioid PEComa coexisting with angiomyolipoma in the kidney

Renal epithelioid perivascular epithelioid cell tumors (PEComas) are rare neoplasms with potential for aggressive clinical behaviour that present a significant diagnostic challenge due to imaging features that overlap with renal cell carcinoma (RCC).
Chuen Wai Choi, MBBS (HK), FRCR, FHKAM, Chung Wai Wong, MBBS (HK), FRCR, Novena Lin Sing Cheng, LMCHK, FRCR, FHKAM, Richard Wing-Cheuk Wong, MBBS (HK), FHKAM   +3 more
core   +1 more source

Perivascular epithelioid cell tumor (PEComa) of the uterus with aggressive behavior at presentation [PDF]

, 2009
Perivascular epithelioid cell tumor (PEComa) is a rare mesenchymal tumor composed of histologically and immunohistochemically distinctive perivascular epithelioid cells (PECs).
Liu, Jing-Lan, Lin, Yueh-Min, Jui-Chang Hsu, Yeh, Kun-Tu, Chih-Jung Chen, Lin, Ming-Chieh, Ming-Chieh Lin, Chen, Chih-Jung, Kun-Tu Yeh, Hsu, Jui- Chang, Yueh-Min Lin, Jing-Lan Liu   +11 more
core   +1 more source