Carcinoma ex pleomorphic adenoma is a rare neoplasm of the salivary gland containing both benign pleomorphic adenoma as well as malignant neoplasm components.

• 摘要源自多形性腺瘤之癌是少见的唾液腺恶性肿瘤，形成原因不明，可能和铁性多形性腺瘤恶性变化有关。