title: Fourth branchial cleft (pharyngeal pouch) remnant.
mesh_terms: D001934:Branchial Region / Q000033:anatomy & histology; D001935:Branchioma / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D002675:Child, Preschool; D006801:Humans; D008297:Male; D011859:Radiography