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Ancient schwannoma of the submandibular gland.
BMJ Case Rep
January 2025
Division of Plastic and Reconstructive Surgery, Department of Surgery, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
Schwannomas, benign tumours derived from Schwann cells, exhibit slow growth rates and are commonly found extracranially in the head, neck and extremities. However, intraoral and salivary gland schwannomas are less frequent. Ancient schwannomas, characterised by histological degenerative changes, represent a rare variant.
View Article and Find Full Text PDFWWC proteins-mediated compensatory mechanism restricts schwannomatosis driven by loss of function.
Sci Adv
January 2025
Institute of Pediatrics, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.
NF2-related schwannomatosis, previously known as neurofibromatosis type 2, is a genetic disorder characterized by nerve tumors due to gene mutations. Mice with deletion develop schwannomas slowly with low penetrance, hence inconvenient for preclinical studies. Here, we show that NF2, by recruiting E3 ubiquitin ligases β-TrCP1/2, promotes WWC1-3 ubiquitination and degradation.
View Article and Find Full Text PDFUncommon retroperitoneal mass in a young adult: A rare case report of retroperitoneal schwannoma and review of diagnostic challenges.
Int J Surg Case Rep
January 2025
General Surgery Department, Center for Traumatology and Major Burns, 1st of May Street, El Iskan City, 2013, Ben Arous, Tunisia; Faculty of Medicine of Tunis. 15, Djebel Lakhdhar Street, 1007 Bab Saadoun, Tunis, Tunisia.
Introduction And Importance: Retroperitoneal schwannomas are extremely rare, benign tumors originating from Schwann cells in peripheral nerve sheaths, with few reported cases. Their deep location and nonspecific symptoms make preoperative diagnosis challenging, often requiring imaging and surgical resection for confirmation. This case highlights an uncommon presentation of retroperitoneal schwannoma in a young patient, emphasizing its rarity.
View Article and Find Full Text PDFSeminal vesicle schwannoma with chronic hemorrhage.
Neurosciences (Riyadh)
January 2025
From the Department of Radiology (Li, Zhang), Department of Pathology (Yang), First People's Hospital of Yongkang City, Yongkang City, and from Jinhua Central Hospital (Ying), Jinhua City, Zhejiang Province, China.
Schwannomas are benign tumors originating from Schwann cells, with seminal vesicle schwannomas being exceedingly rare. This report describes a 54-year-old man with an incidental discovery of a right-sided seminal vesicle mass during a routine ultrasound examination. Further imaging, including MRI and contrast-enhanced CT scans, revealed a well-defined, encapsulated mass with heterogeneous signal intensity suggestive of schwannoma.
View Article and Find Full Text PDFFrontal lobe intra-axial schwannoma harboring a CHD7::VGLL3 fusion and heterozygous TSC2 p.F1510del mutation in a young child.
Mol Biol Rep
January 2025
Department of Pathology and Laboratory Medicine, Baylor Scott and White Medical Center, Baylor College of Medicine, Temple, TX, USA.
Background: Brain intraparenchymal schwannoma is a rare clinical entity, generally curable with adequate resection.
Methods And Results: We describe a case in a male patient first presenting at 19 months of age, the youngest reported age for this lesion. It also appears to be the first case connected to a germline TSC2 p.
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