Schwannoma in the head and neck is usually arising in the parapharyngeal space, but intramasseteric schwannoma is very rare. We report a schwannoma arising from masseter muscle in a middle-aged woman, who presented with a history of a painless right cheek mass for 3 years. Computed tomography scan suggested that the mass was located within the masseter muscle. Fine-needle aspiration was performed and showed spindle neoplastic cells, which were suspected to be of mesenchymal tissue origin. The mass was completely resected under general anesthesia. It was a well-circumscribed and lobulated mass, 4 × 3 × 2 cm in size. Histological examination gave the diagnosis of schwannoma, which was also confirmed by immunohistochemical stainings for S-100 and vimentin. Neurologic sequelae and recurrence were not found at 2 years after surgery.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/SCS.0b013e3181f504dd | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Nerve Enlargement in Patients with INF2 Variants Causing Peripheral Neuropathy and Focal Segmental Glomerulosclerosis.
Biomedicines
January 2025
Second Department of Internal Medicine, Division of Nephrology, Kansai Medical University, Hirakata 573-1010, Japan.
: Charcot-Marie-Tooth (CMT) disease is an inherited peripheral neuropathy primarily involving motor and sensory neurons. Mutations in INF2, an actin assembly factor, cause two diseases: peripheral neuropathy CMT-DIE (MIM614455) and/or focal segmental glomerulosclerosis (FSGS). These two phenotypes arise from the progressive degeneration affecting podocytes and Schwann cells.
View Article and Find Full Text PDFGigantic retroperitoneal pararenal ancient schwannoma masquerading as a mesenchymal malignancy: A diagnostic conundrum.
Urol Case Rep
January 2025
Department of Pathology, Vardhman Mahavir Medical College And Safdarjung Hospital, New Delhi, 110029, India.
Ancient schwannoma is a rare benign variant of schwannoma with marked degenerative changes, often mimicking malignancies, particularly when retroperitoneal and pararenal. A 34-year-old woman presented with a rapidly growing 15 cm retroperitoneal pararenal mass. Imaging suggested an aggressive malignancy.
View Article and Find Full Text PDFA Rare Case of Perineurioma of the Posterior Interosseous Nerve: A Case Report.
Cureus
December 2024
General Surgery, All India Institute of Medical Sciences, Guwahati, Guwahati, IND.
The perineurioma (PN) is a benign neoplasm with perineural origin. It can be of two types, i.e.
View Article and Find Full Text PDFA rare case of extracranial schwannoma in the masticator space removed by endoscopic assisted transoral approach (EATA).
Oral Oncol
January 2025
ENT Department, Ospedali Riuniti Marche Nord, Fano-Pesaro, Italy.
Background: Extracranial schwannomas, particularly those arising from the masticator space, are rare entities. Given the challenges in pre-operative diagnosis and the potential for misdiagnosis, accurate localization and differential diagnosis are crucial for optimal surgical planning.
Case Report: A 42-year-old woman underwent a head and neck MRI for unrelated reasons and was incidentally found to have a mass in the left masticator space.
Cellular Schwannoma Arising After the Resection of an Anterior Mediastinal Leiomyosarcoma.
Ann Thorac Surg Short Rep
December 2024
Department of General Thoracic Surgery, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan.
Cellular schwannoma is a schwannoma subtype with histopathologic features resembling those of malignant tumors. We report a case of a cellular schwannoma arising at the resection margin of an anterior mediastinal leiomyosarcoma. An 88-year-old woman who had undergone resection of an anterior mediastinal leiomyosarcoma 2 years previously developed a mediastinal tumor at the resection margin, raising suspicion of leiomyosarcoma recurrence.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!