title: Dicephalic parapagus conjoined twins: a rare second trimester sonographic diagnosis.
abstract: Conjoined twins are 1 of the rarest and most challenging congenital malformations. It occurs if twinning is initiated after the embryonic disc and rudimentary amniotic sac have been formed. We report a very rare case of dicephalic parapagus that was diagnosed by transabdominal sonography.
authors.affiliation: Gaziantep University Medical School, Department of Radiology, Sahinbey, Gaziantep, Turkey.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Mete
authors.forename: Fatma Bahar
authors.initials: FB
authors.lastname: Cebesoy
authors.forename: Ebru
authors.initials: E
authors.lastname: Dikensoy
authors.forename: Irfan
authors.initials: I
authors.lastname: Kutlar
mesh_terms: D000032:Abortion, Therapeutic; D000328:Adult; D001921:Brain / Q000002:abnormalities* / Q000196:embryology; D003937:Diagnosis, Differential; D004453:Echoencephalography / Q000379:methods*; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging*; D005500:Follow-Up Studies; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D014428:Twins, Conjoined / Q000196:embryology*; D016216:Ultrasonography, Prenatal / Q000379:methods*