Abstract
Pleomorphic adenoma in the submandibular gland comprises about 10% of all patients with pleomorphic adenomas, and is known to be rare. Six cases of pleomorphic adenoma in the submandibular gland who were treated at our department, were thus clinically analyzed in this paper. These cases (3 males and 3 females) ranged in age from 25 to 69 years of age with an average of 53.7 years. The chief complaint of all cases was tumor palpation. The average period of time from onset until operation was 64 months. The tumors of all cases were surgically removed while preserving the facial nerve and all were thereafter followed by histopathological examinations. No cases of pleomorphic adenoma were diagnosed to have carcinoma and there were also no cases of recurrence. We thus concluded that a complete removal of the tumor with the normal gland at the first operation and a long-term follow-up are necessary for the effective treatment of pleomorphic adenoma in fhe submandibular gland.