title: Second branchial cleft cyst: unusual location and a new CT diagnostic sign.
mesh_terms: D000328:Adult; D001935:Branchioma / Q000000981:diagnostic imaging*; D002339:Carotid Arteries / Q000000981:diagnostic imaging; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed