耳下腺と口蓋腺に併発した多形性腺腫の1例

抄録

Pleomorphic adenoma is statistically the most common salivary gland neoplasm, but multiple case of the tumor is extremely rare.
According to the literature, multiple pleomorphic adenoma is less than 0.8% of all salivary gland tumors.
We have recently experienced a case of benign multiple pleomorphic adenoma occurring simultaneously, involving both parotid and palatal glands.
The patient, 76-year-old woman was referred to our clinic complaining of swelling of the right parotid region and the palate.
The tumors were surgically removed.
They were entirely encapsulated by fibrous connective tissue and were completely separated.
Histological findings showed that they were benign pleomorphic adenoma with no evidence of metastasizing pleomorphic adenoma.
The postoperative course is favorable with no sign of recurrence, but observation will have to be continued.