A Case of Pleomorphic Adenoma of the Lower Lip

Pleomorphic adenoma, which is the most common benign tumor in the salivary glands, occurs frequently in the parotid gland, but is relatively rare in the lower lip. We report a case of pleomorphic adenoma which developed from the lower lip in a 72-year-old woman. The lesion was an elastic-hard mass measuring 10×15mm which was painless and movable. The clinical diagnosis was a benign tumor of the lower lip. The tumor was completely resected under local anesthesia. The removed tumor was well encapsulated. The histological diagnosis was pleomorphic adenoma originating from a minor salivary gland of the lower lip. The lower lip healed well and there has been no evidence of recurrence after the operation. However, careful long-term follow-up for relapse and malignant change is required.