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An Official Publication of the Indian Association of Oral and Maxillofacial Pathologists

CASE REPORT Table of Contents   
Year : 2011  |  Volume : 15  |  Issue : 1  |  Page : 46-51
Intraoral presentation of multiple malignant peripheral nerve sheath tumors associated with neurofibromatosis-1

Department of Oral Pathology and Microbiology, Amrita School of Dentistry, Kochi, Kerala, India

Correspondence Address:
Mahija Janardhanan
Reader, Department of Oral Pathology and Microbiology, Amrita School of Dentistry, Kochi, Kerala
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0973-029X.80025

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Neurofibromatosis-1 (NF-1) is a relatively common autosomal dominant disease characterized by multiple cutaneous fibromatoses and café au lait spots. It is associated with the mutation of NF-1 gene, a tumor suppressor gene located on chromosome 17q11.2. Hence, it can be considered as a familial cancer predisposition syndrome in which the affected individuals are at increased risk of developing malignancies. Intraoral neurofibromas associated with NF-1 are quite common, but the occurrence of malignant peripheral nerve sheath tumor (MPNST) in the oral cavity is very rare. Oral MPNST can occur either de novo or by malignant transformation of neurofibromas or very rarely can represent a metastatic lesion. Here, we present a case of MPNST involving the maxillary region, in a patient with NF-1. Since MPNST often creates a diagnostic dilemma, histopathologic criteria for the diagnosis of MPNST are also discussed.

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Journal of Oral and Maxillofacial Pathology | Published by Wolters Kluwer - Medknow
Online since 15th Aug, 2007