Germination, Protuberance, Biphasic: Pleomorphic Adenoma

Abstract

Pleomorphic adenoma is a ubiquitous, benign salivary gland tumour arising in the parotid besides the submandibular, sublingual and minor salivary glands. The tumours predominantly manifest between 30 to 60years as a painless, slowly-evolving lump. Precipitous enlargement, pain, facial nerve paresis or adherence of superimposed skin implicates malignant conversion. Evolution into a carcinoma ex pleomorphic adenoma may be witnessed in 3-4% lesions [1].