title: Sonographic features of anal atresia at 12 weeks.
abstract: Anorectal atresia results from abnormal development of the anorectal septum. Prenatal diagnosis is difficult but the condition may be suspected by the sonographic demonstration of a dilated colon. We present the sonographic features of a fetus with anal atresia and a ventricular septal defect at 12 weeks of gestation. This case illustrates that a dilated colon may be present in association with fetal anal atresia as early as 12 weeks.
authors: Department of Obstetrics and Gynaecology, Tsan Yuk Hospital and Department of Pathology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China. yhlam@hkucc.hku.hk
authors: Y H
authors: YH
authors: Lam
authors: T
authors: T
authors: Shek
authors: M H Y
authors: MH
authors: Tang
mesh_terms: D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging*; D000032:Abortion, Therapeutic; D000328:Adult; D001006:Anus, Imperforate / Q000000981:diagnostic imaging*; D001344:Autopsy; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging; D006345:Heart Septal Defects, Ventricular / Q000000981:diagnostic imaging*; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D016216:Ultrasonography, Prenatal / Q000379:methods*