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

CASE REPORT Table of Contents   
Year : 2014  |  Volume : 18  |  Issue : 1  |  Page : 127-130
Oncocytoma of minor salivary gland involving the retromolar region: A rare entity

1 Department of Oral Pathology and Microbiology, Subharti Dental College, Meerut, Uttar Pradesh, India
2 Department of Oral and Maxillofacial Surgery, Subharti Dental College, Meerut, Uttar Pradesh, India
3 Department of Oral Medicine and Radiology, Subharti Dental College, Meerut, Uttar Pradesh, India

Correspondence Address:
Suhasini Gotur Palakshappa
Department of Oral Pathology and Microbiology, Subharti Dental College, Meerut, Uttar Pradesh 250 005
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0973-029X.131941

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Oncocytic neoplasms comprise a group of rare tumors of salivary glands. Histologically, World Health Organization (WHO) (1991) classified them into three distinct types: Oncocytosis, oncocytoma and oncocytic carcinoma. Oncocytoma is also known by the more descriptive and less confusing terms of oxyphilic adenoma and oxyphilic granular cell adenoma. Oncocytoma is a rare benign salivary gland neoplasm composed of large epithelial cells with characteristic bright eosinophilic granular cytoplasm (oncocytic cells). It accounts for approximately 0.4-1% of all salivary gland neoplasms, occurring primarily in parotid glands, with only a small percentage occurring in minor salivary glands of palate, tonsillar fossi, larynx, nasal cavity, maxillary sinus and the lacrimal gland. It occurs primarily in persons older than 50 years of age. According to some authors, the biologic behavior of oncocytomas arising from minor salivary glands is that of an aggressive nature and should be considered as low-grade malignancies. Only 17 cases of histologically verified oncocytoma of an intraoral minor salivary gland are reported in literature, , the current case being the 18th. Owing to the lack of large series, assiduous study of the cases reported in the literature may lead to better understanding of this rare entity. We herein describe a rare and probably the first case of minor salivary gland oncocytoma involving retromolar area in a 32-year-old female patient with a brief review of literature.

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Journal of Oral and Maxillofacial Pathology | Published by Wolters Kluwer - Medknow
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