Sialolipoma of Parotid Gland a Rare Histological Presentation

Sialolipoma is a rare tumour found within both major and minor salivary glands, it is recently described as a variant of salivary gland lipoma. Sialolipoma was first described by Pusiol et al. (Indian J Pathol Microbiol 52(3):379-382, 2009). Sialolipoma is well circumscribed and contains mature adipose tissue admixed with benign salivary gland component. We report a case of 62 years old female who presented with the complaint of swelling in the right parotid region for 5 years duration. Apart from cosmetic reason she had no other complain. All specific investigations done were inconclusive and suggested a benign tumor. Histopathological examination after superficial parotidectomy suggested sialolipoma. As newly described tumor type, care should be taken to distinguish oncocytic sialolipoma from other salivary gland neoplasms such as simple lipoma, pleomorphic adenoma, or oncocytoma.