Carcinoma in pleomorphic adenoma (CPA) of salivary gland origin is a relatively uncommon neoplasm. CPA accounts for 3 % to 10% of all tumors arising in the salivary glands.
Recently, we encountered a case of CPA metastasizing from the right parotid gland to the left side of the mandible in a 70-year-old woman.
She had swelling and spontaneous pain of the left side of the mandible. At initial examination, the clinical diagnosis of the parotid gland was pleomorphic adenoma, and that of the mandible was a malignant tumor. Surgical removal of these tumors was performed, and the histopathological diagnosis was CPA in the parotid gland and mandible.
The patient must be followed up for a long time and local recurrence must be controlled.
