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J Maxillofac Oral Surg. 2012 Dec;11(4):491-4. doi: 10.1007/s12663-010-0100-1. Epub 2011 Mar 25.

Intraoral schwannoma in retromolar region.

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1
Oral and Maxillofacial Surgery, Government Dental College and Research Centre, Ayurvedic College Campus, G.E. Road, Raipur, Chhattisgarh India.

Abstract

Schwannomas of the intra oral region are relatively uncommon; these are benign nerve sheath tumors that arise from schwann cells of the neural sheath. They are solitary, slow-growing, smooth-surfaced, usually asymptomatic, and encapsulated tumors, about 25% of all schwannomas are located in the head and neck, but only 1% show intraoral origin. We are contributing a report of 24 years old woman with slow progressive swelling over the right retromolar region. Magnetic resonance imaging presented a well defined mass over the right retromolar area measuring 19 × 19 mm(2) and fine needle aspiration cytology revealed that it was a tumor mass of neurogenic origin. Diagnosis was confirmed by excisional histological identification of Antoni A areas with marked palisading of nuclei. Although these rare entities of oral cavity are routinely not encountered in practice, they should be added in differential diagnosis of intraoral tumors.

KEYWORDS:

Intraoral tumor; Neurogenic tumor; Schwannoma; Soft tissue tumor

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