A case of pleomorphic adenoma extending to the parapharyngeal space is reported. The patient was a 40 year-old woman who had abnormal sensation in her throat. Subsequently she felt a growing mass in the parotid region. We pointed it out incidentally when she visited our clinic accompanying her son. Physical examionation revealed a giant mass lesion dislocating the side wall of the pharynx. CT and MRI revealed a giant tumor that seemed to have arisen from the parotid gland and extend to the parapharyngeal space. The tumor was removed by an external approach with ipsilateral extirpation of the submandibular gland. Histological examination revealed a pleomorphic adenoma.
