Results 41 to 50 of about 4,316 (128)

Placental Site Trophoblastic Tumor Acquires Immune Functions by Incorporating Host Maternal Genes

Advanced Science, Volume 13, Issue 50, 7 September 2026.
PSTT cells, through cell fusion with B cells, incorporate abundant non‐inherited maternal genes that are detectable by DNIMA. These hybrid cells acquire immunotherapy‐resistant genetic changes and increase the expression of B cell‐derived immune‐related molecules such as Ig, HLA, LILRB, SIGLEC10, and so on, creating an immunotolerant environment around
Kyosuke Kagami, Masanori Ono, Yasunari Mizumoto, Tatsuhito Kanda, Takashi Iizuka, Takiko Daikoku, Shin‐ichi Horike, Akira Hattori, Akihito Horie, Sachiko Minamiguchi, Tomoko Fujiwara, Kazuyoshi Hosomichi, Atsushi Tajima, Hirokazu Usui, Kaoru Abiko, Hiroshi Fujiwara   +15 more
wiley   +1 more source

A Primary Adrenal Epithelioid Angiomyolipoma (PEComa) in a Patient with Tuberous Sclerosis Complex: Report of a Case and Review of the Literature

Case Reports in Medicine, 2020
Epithelioid angiomyolipomas (EAMLs) are mesenchymal tumors that are part of the family of the perivascular epithelioid cell neoplasms (PEComas). These tumors portray a potential aggressive behavior with metastatic lesions found in around 30% of reported ...
Nancy Torres Luna, Jorge Esteban Mosquera, Isin Yagmur Comba, Mustafa Kinaan, Jorge Otoya   +4 more
doaj   +1 more source

47 Year Old Female with a Recurrent Abdominal Perivascular Epithelioid Cell Tumor: Case Report and Literature Review

Sakarya Tıp Dergisi
Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal neoplasms characterized by histologically and immunohistochemically distinctive epithelioid or spindle cells.
Ugur Dulger, Metin Ercan, Bilge Elçin, Ali Yousef   +3 more
doaj   +1 more source

Perivascular epithelioid cell neoplasm of the urinary bladder in an adolescent: a case report and review of the literature

Diagnostic Pathology, 2012
Perivascular epithelioid cell neoplasms (PEComas) of the urinary bladder are extremely rare and the published cases were comprised predominantly of middle-aged patients.
Yin Lijuan, Bu Hong, Chen Min, Yu Jianqun, Zhuang Hua, Chen Jie, Zhang Hongying   +6 more
doaj   +1 more source

Malignant Perivascular epithelioid cell tumour of the uterus without TFE3 gene rearrangement: a case report

BMC Women's Health
Background Perivascular epithelioid cell tumours (PEComas) are soft tissue tumours. These neoplasms belong to the family of mesenchymal tumours, which include angiomyolipomas, clear-cell sugar tumours of the lung, and PEComas not otherwise specified (NOS)
Mu Xu, Jianhui Fu, Liangzhi Cai
doaj   +1 more source

A frontal lobe mass in a 6‐year‐old girl

Brain Pathology, EarlyView.
Francesca S. Vacca, Aaron Mochizuki, Smruti K. Patel, Blaise Jones, Somak Roy, Kirti Gupta   +5 more
wiley   +1 more source

Epidermoid cyst as differential diagnosis for spherical keratoma: What do we know?

Equine Veterinary Education, Volume 38, Issue 9, Page 489-508, September 2026.
Summary This article briefly presents the case of a space‐occupying coronary band mass that raised the question of how one can differentiate between two uncommonly seen but now commonly paired differential diagnoses and prompted a review of the relevant literature.
R. Goodman‐Davis, D. C. Debald, R. Haralambus   +2 more
wiley   +1 more source

Perineurioma‐like EMA‐positive calvarial neoplasms: clinicopathological study of eight cases

Histopathology, Volume 89, Issue 3, Page 544-553, September 2026.
Perineurioma‐like, EMA‐positive calvarial neoplasms (PLECN) are a rare group of intraosseous spindle cell tumours that demonstrate overlapping morphologic features of perineurioma and fibroblastic meningioma. These lesions tend to behave indolently but show a propensity for progressive growth.
Raheel Rizwan, Yingting Mok, Josephine K Dermawan, Alexandra Isaacson, Veronica Ulici, Scott E Kilpatrick, John D Reith, Gabrielle Yeaney, Hakan Ilaslan, Karen J Fritchie   +9 more
wiley   +1 more source

MEIS1::NCOA2 Rearranged Spindle Cell Neoplasm of Vulva With Unusual Low‐Grade Morphology

Genes, Chromosomes and Cancer, Volume 65, Issue 8, August 2026.
ABSTRACT MEIS1::NCOA2 is a recurrent gene fusion that has been predominantly identified in primitive sarcomas arising within the genitourinary and gynecological tracts. Since its initial description in 2018, an increasing number of cases have been reported, further defining the clinicopathological spectrum of this entity.
Pinki Soni, Liyan Song, Jason Phung, Andrew Colebatch, John M. Gross, Pedram Argani, Pranav Dorwal   +6 more
wiley   +1 more source

Perivascular epithelioid cell neoplasm of the uterine cervix: an unusual tumor in an unusual location

Rare Tumors, 2010
A 46-year-old woman presented for a second opinion regarding a 3-4 cm mass of the uterine cervix. A prior biopsy had been interpreted as a malignant melanoma of the cervix, resulting in a radical hysterectomy with bilateral salpingo-oophorectomy.
Gary Croghan, Michael Bradshaw, Andrew Folpe   +2 more
doaj   +1 more source