title: Difficulty in sonographic diagnosis of cephalothoracopagus.
mesh_terms: D000005:Abdomen / Q000002:abnormalities; D000015:Abnormalities, Multiple / Q000175:diagnosis* / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005145:Face / Q000002:abnormalities; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis; D008297:Male; D011247:Pregnancy; D011296:Prenatal Diagnosis; D011859:Radiography; D012886:Skull / Q000002:abnormalities; D013909:Thorax / Q000002:abnormalities; D014428:Twins, Conjoined / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014463:Ultrasonography