Volume 57 (1996) Issue 10 Pages 2403-2405
A 53-year-old male was seen at the hospital because of a tumor on the right side of the neck. It was measured 4.5×3.8 cm in size and palpated in the anterior margin of the sternocleidomastoid muscle on the right side of the neck. CT scan revealed a cystic lesion with homogenous low density area, and the tumor was diagnosed as lateral cervical cyst. However, histologically, squamous cell carcinoma was found in the non-neoplastic squamous epithelium lining the cyst wall. Therefore, we definitely diagnosed it as branchiogenic carcinoma.