Is Carcinoma ex pleomorphic adenoma a carcinomatous change?

Background: Carcinoma ex pleomorphic adenoma (CA-ex-PA) is extremely unusual in minor salivary glands of oral cavity. CAex-PA is a carcinomatous change as a primary or as a recurrence of pleomorphic adenoma.

What is ex pleomorphic salivary gland cancer?

Carcinoma ex pleomorphic adenoma is a high-grade salivary gland carcinoma in which malignant transformation occurs in a previously benign pleomorphic adenoma. This tumor most often develops in the parotid gland, where it represents 2% to 3% of all parotid neoplasms.

What is ca ex PA carcinoma?

Carcinoma ex pleomorphic adenoma (Ca ex PA) is a carcinoma arising from a primary or recurrent benign pleomorphic adenoma. It often poses a diagnostic challenge to clinicians and pathologists.

What is adenocarcinoma carcinoma?

Usually defined as carcinoma that develops in association with benign primary or recurrent pleomorphic adenoma Rare spectrum of carcinomas demonstrating abrupt transition from benign tumor (usually pleomorphic adenoma); often adenocarcinoma, NOS, myoepithelial, salivary duct, terminal duct or undifferentiated carcinomas, usually with benign stroma