Bilateral Pleomorphic Adenomas Of The Parotid Glands: Discussion Over Two Cases

The occurrence of multiple distinct tumors in major salivary glands is quite rare. Although the most common tumor with bilateral synchronous or metachronous development is the Warthin's tumor, pleomorphic adenomas have been very rarely diagnosed simultaneously as well. The authors report two consecutive cases of patients with bilateral pleomorphic adenomas of the parotid glands discussing clinical features, diagnostic challenges and therapeutic options.