A rare case report of metastasizing pleomorphic adenoma ?of parotid gland

Abstract

Pleomorphic adenoma is one of the most common benign parotid gland tumors. Local recurrence can occur in 1% to 5% of cases after surgery. Metastasizing pleomorphic adenomas are very rare entity and have rarely been reported. Histologically it has benign morphology. Metastasis can occur in bone, lymph nodes, the lung, oral cavity, pharynx, skin, liver, kidney, and central nervous system. We hereby report a case of pleomorphic adenoma of the parotid gland metastasizing to lungs.