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Lymphangioleiomyomatosis of the Pelvic Lymph Nodes Detected Incidentally During Surgical Staging of Gynecological Malignancies: Comprehensive Clinicopathological Analysis of 17 Consecutive Cases from a Single Institution.
In Vivo
December 2024
Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
Background/aim: Lymphangioleiomyomatosis (LAM) belongs to the perivascular epithelioid cell tumor (PEComa) family. The relationship between LAM and tuberous sclerosis complex (TSC) is of particular concern in a subset of women with clinically occult LAM involving the pelvic lymph nodes. This study aimed to investigate the clinicopathological features of incidental nodal LAM detected during the surgical staging of gynecological tumors.
View Article and Find Full Text PDFRisk prediction criteria for the primary hepatic perivascular epithelioid cell tumour family, including angiomyolipoma: analysis of 132 cases with a literature review.
Histopathology
December 2024
Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Aims: The hepatic perivascular epithelioid cell tumour (PEComa), including angiomyolipoma, exhibits diverse morphology and clinical behaviour; however, its prognostic features remain undefined. This study aimed to investigate its histological features and prognostic factors.
Methods And Results: In total, 132 patients were included.
Risk 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 PDFIntraspinal and Intracranial Melanotic Perivascular Epithelioid Cell Tumor.
Radiology
December 2024
From the Department of Medical Imaging, University Hospitals Leuven, Leuven, Belgium (B.V.B., J.D.); and Department of Medical Imaging, Jessa Ziekenhuis, Stadsomvaart 11, 3500 Hasselt, Belgium (B.V.B.).
Renal 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.
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