Mucin production by pleomorphic adenomas of the parotid gland: A cytologic spectrum

Abstract
Mucinous salivary gland aspirations represent a special diferential diagnostic problem. Considerations include pleomorphic adenoma. Warthin's tumor, chronic obstructive sialadenitis. and low‐grade mucoepidermoid carcinoma. We herein discuss three cases that illustrate a spectrum of mucin production by pleomorphic adenomas. The literature is reviewed, and the possible distinction of pleomorphic adenoma from low‐grade mucoepidermoid carcinoma is considered.