A rare case of sclerosing polycystic adenosis of parotid gland

Abstract

The parotid gland tumors are classified according to their morphological and histological patterns. The most common site of presentation of a salivary neoplasm is the parotid gland. Sclerosing polycystic adenosis (SPA) is a rare disease of the salivary glands, first described by Smith et al at 1996. We report a case of 61 year gentleman admitted in KVG Medical college and hospital with complains of swelling in right side of face since 6 months. Local examination of right parotid region showed solitary swelling with ipsilateral mandibular lymphadenopathy. EBV profile was positive. CT head and neck revealed an enlarged right sided parotid gland resembling features of Pleomorphic adenoma. Fine needle aspiration of gland showed features of chronic sialo-adenitis. A provisional diagnosis of Pleomorphic Adenoma was made. Patient underwent superficial parotidectomy. Histopathology of the operated specimen had features suggestive of Sclerosing polycystic adenosis of parotid gland. Patient was followed up for a period of one year and he had no recurrence. To conclude, Sclerosing polycystic adenosis of the parotid gland is a rare benign salivary gland lesion with histologic analogies to sclerosing adenosis of the mammary gland. Complete surgical excision is the reference treatment, to reduce the risk of recurrence and/or evolution.