抄録
Synchronous parotid tumors are rare. Unilateral, synchronous tumors of different histological types are very unusual. We report herein on a case of Warthin’s tumor and pleomorphic adenoma arising in unilateral parotid gland.
A 54-year-old man presented with two masses in the right parotid gland. The preoperative magnetic resonance imaging revealed two tumors; one with a diameter of 30 mm in the infra-auricular region and the other with a diameter of 10 mm in the preauricular region. Fine needle aspiration showed the tumor in the infra-auricular region was compatible with Warthin’s tumor. Preoperative diagnosis was multiple Warthin’s tumors. The patient underwent surgical treatment under general anesthesia. The tumor in the infra-auricular region was resected by enucleation, the other in the preauricular region was resected by a partial superficial parotidectomy with preservation of the facial nerve. Pathologically, the diagnosis based on the resected specimens showed that Warthin’s tumor and a pleomorphic adenoma were coexisting in the right parotid gland. The patient is alive with no facial palsy or tumor recurrence at the latest follow-up, two years after the surgery.
