Korean J Pathol.
2009 Feb;43(1):88-91. 10.4132/KoreanJPathol.2009.43.1.88.
Intraosseous Neurilemmoma of the Mandible: A Case Report
- Affiliations
-
- 1Department of Pathology, Institute for Medical Science, Chonbuk National University Medical School, Jeonju, Korea. hspark@chonbuk.ac.kr
- KMID: 1472561
- DOI: http://doi.org/10.4132/KoreanJPathol.2009.43.1.88
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.
