Intraosseous Neurilemmoma of the Mandible: A Case Report.
10.4132/KoreanJPathol.2009.43.1.88
- Author:
Kyu Yun JANG
1
;
Woo Sung MOON
;
Ho Sung PARK
Author Information
1. Department of Pathology, Institute for Medical Science, Chonbuk National University Medical School, Jeonju, Korea. hspark@chonbuk.ac.kr
- Publication Type:Case Report
- Keywords:
Mandibular neoplasms;
Neurilemmoma;
Bone neoplasms
- MeSH:
Aged;
Bone Neoplasms;
Female;
Hemorrhage;
Humans;
Mandible;
Mandibular Neoplasms;
Neurilemmoma;
Recurrence;
S100 Proteins;
Schwann Cells
- From:Korean Journal of Pathology
2009;43(1):88-91
- CountryRepublic of Korea
- Language:English
-
Abstract:
Neurilemmoma (Schwannoma) is a benign nerve sheath tumor that's composed entirely of well-differentiated Schwann cells. Intraosseous neurilemmomas are rare and they represent less than 1% of all benign primary bone tumors. We report here on an additional case of intraosseous neurilemmoma that was located in the mandible of a 77-year-old woman. CT revealed an expansile, well-defined lesion on the right side of the mandibular body with thinning of the cortex. The lesion was surgically removed and it was found to be a 2x1.7 cm-sized, bright yellowish, hard mass with hemorrhage and cyst formation. Histologically, the mass was a moderately cellular neoplasm and it showed distinct nuclear palisading, numerous Verocay bodies and tumor cells that were positively immunohistostained for S-100 protein. Two months after the operation, the patient has remained in a good condition with no signs or symptoms of tumor recurrence.
