Primary Angiosarcoma of Accessory Parotid Gland : A Case Report of Long Term Follow-up

Korean Journal of Head & Neck Oncology 2015;31(2):54-57.
Published online November 30, 2015.

Hyo Won Lee;Deok Su Kim;Gyu Ho Jang;Jeong Kyu Kim

부이하선에 생긴 원발성 혈관육종 1예의 장기추적

이효원;김덕수;장규호;김정규

Abstract

Angiosarcoma is a rare and highly malignant neoplasm which develops from the endothelium of blood vessels. A few cases of primary angiosarcoma of the parotid gland have been reported. However, there is no report of primary angiosarcoma of the accessory parotid gland. In this case, we report a primary angiosarcoma of the accessory parotid gland in a 45-year-old man with growing cheek mass. Ultrasonography revealed a 2.0×2.6 cm sized homogeneous hypoechoic mass and computed tomography showed a contrast enhanced homogeneous mass. Fine needle aspiration biopsy suggested a benign tumor. The mass was completely excised with a minimal vertical incision. The histopathol-ogy showed anastomosing vascular channels lined by atypical endothelial cells and many branching vessels with staghorn appearance with positive immunohistochemical staining for CD34, a highly specific endothelial marker. The patient underwent postoperative radiotherapy and was followed for 8 years without recurrence and metastasis.

Key Words: Angiosarcoma, Salivary gland, Accessory parotid neoplasm