Abstract
Pleomorphic adenoma is the most common salivary gland tumor, and histological pleomorphism of this tumor is one of the most characteristic features. Although small cyst formation in this tumor is sometimes observed, large cyst formation in this tumor is a rare condition.
A case of pleomorphic adenoma, having a relatively large cystic lesion in the left parotid gland in a 28-year-old man, was presented. The adenoma was examined with some imaging methods, and intravenous enhancement of CT was found to be the most useful method for this condition.
The tumor was extracted from the parotid gland. The tumor was 20×20×20 mm in size and had a thickened capsule, including two large cysts. Histologically, the tumor was diagnosed as plemorphic adenoma with large cysts.
The patient had no recurrence for five years.
