title: Prenatal diagnosis of right aortic arch with mirror-image branching without associated anomalies.
abstract: A pregnant woman at 32 weeks of gestation was referred because of untypical visualization of a three-vessel tracheal view. Detailed ultrasound examination demonstrated an abnormal position of descending aorta, positioned at the right-front side of the spine at the level of four-chamber view. The descending aorta was connected with left pulmonary artery through ductus arteriosus, which configured a vascular ring. Right aortic arch with mirror-image branching without any associated anomaly was suspected prenatally. Amniocentesis showed no chromosomal abnormality. A male, 2440-g infant was delivered vaginally at 37 weeks and 4 days of gestation. Echocardiography confirmed no associated congenital heart defect. Three-dimensional reconstruction using 64-slice spiral computed tomography angiography at 2-months old confirmed the diagnosis of right aortic arch with mirror-image branching. The infant is now 1 year old and well developed without any symptoms.
authors.affiliation: Perinatal Care Center and Department of Obstetrics and Gynecology, Tokuyama Central Hospital, Shunan-City, Japan.
authors.forename: Masahiko
authors.initials: M
authors.lastname: Nakata
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Suzuki
authors.forename: Noriko
authors.initials: N
authors.lastname: Hotta
authors.forename: Takayo
authors.initials: T
authors.lastname: Sunasaka
authors.forename: Fumitaka
authors.initials: F
authors.lastname: Numa
mesh_terms: D000328:Adult; D001013:Aorta, Thoracic / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000196:embryology; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D047929:Term Birth; D016216:Ultrasonography, Prenatal; D054079:Vascular Malformations / Q000000981:diagnostic imaging* / Q000196:embryology