title: The acardiac monster.
abstract: Two cases of acardiac fetuses are presented. Pathological data in 61 cases are tabulated. Cliassification, terminology and patho-physiological findings are discussed. The Acardiac Monster is a form of monozygotic multiple gestation lacking a physiological heart and resulting in a bizarre fetal malformation which is sustained in utero by parasitic anastomoses to the circulation of a normal twin fetus. The precise etiology of this phenomenon is still obscure and suggestions are made for the future evaluation of the acardiac fetus.
mesh_terms: D009008:Abnormalities, Severe Teratoid / Q000000981:diagnostic imaging*; D000022:Abortion, Spontaneous; D000293:Adolescent; D005260:Female; D006801:Humans; D011247:Pregnancy; D011859:Radiography; D014430:Twins, Monozygotic