title: Bullet in the sphenoid sinus: report of two cases during the Nigerian Civil War.
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D008887:Military Medicine; D009549:Nigeria; D011859:Radiography; D013101:Sphenoid Sinus / Q000000981:diagnostic imaging / Q000293:injuries*; D014857:Warfare; D014948:Wounds, Gunshot / Q000000981:diagnostic imaging*