A Case of Primary Ewing Sarcoma of the Strap Muscle / 대한이비인후과학회지

ABSTRACT

Ewing sarcoma (ES) is an uncommon type of malignancy that arises most frequently in the long bones of the extremities and the pelvis. Primary ES of the head and neck region is extremely rare, accounting for only 1-9% of all ES cases. Because ES typically affects children and young adults, it is of paramount importance to differentiate such tumors from benign lesions or congenital neck masses, particularly in cases where lesions arise primarily from the soft tissue rather than from the bone. We encountered a case of ES of the strap muscle in a 4-year-old boy that manifested as an isolated midline neck mass mimicking a thyroglossal duct anomaly. We report this case along with a brief literature review.