A carcinoma that arises from a pleomorphic adenoma in the parotid gland. Patients usually present with a history of a long-standing tumor mass which grew rapidly in the past few months. Patients with non-invasive or minimally invasive carcinoma have an excellent prognosis. In cases where there is invasion of the surrounding tissues, the clinical course is aggressive. The disease is parotid gland carcinoma ex pleomorphic adenoma (Monarch Disease Ontology entry MONDO_0006357). Also known as: carcinoma ex pleomorphic adenoma of parotid, carcinoma ex pleomorphic adenoma of parotid gland, carcinoma ex pleomorphic adenoma of the parotid, carcinoma ex pleomorphic adenoma of the parotid gland, parotid carcinoma ex pleomorphic adenoma.