Carcinoma ex pleomorphic adenoma
Carcinoma ex pleomorphic adenoma
Definition
A carcinoma arising in a pre-existing pleomorphic adenoma. It most often occurs in the parotid gland and less often in the submandibular gland and minor salivary gland. Patients usually present with a history of a long-standing mass which recently had undergone rapid growth. The prognosis depends on the invasiveness of the malignant component. Patients with non-invasive or minimally invasive tumors usually have a good prognosis following surgical resection. Invasive tumors are usually aggressive and are associated with recurrences and metastases.
Also known as carcinoma ex pleomorphic adenoma, carcinoma ex pleomorphic adenoma (morphologic abnormality), carcinoma in pleomorphic adenoma — per MONDO