Fetus in fetu.
D009008:Abnormalities, Severe Teratoid / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D005333:Fetus / Q000000981:diagnostic imaging*; D006651:Histocytochemistry; D006801:Humans; D007223:Infant; D008297:Male; D011247:Pregnancy; D011859:Radiography; D013724:Teratoma / Q000175:diagnosis; D014427:Twins