Neonatal magnetic resonance imaging in double aortic arch diagnosed prenatally by ultrasound.

Congenital double aortic arch (DAA) is an uncommon vascular anomaly; however, its prenatal detection is associated with congenital heart defects and chromosomal abnormalities, including 22q11 deletion. We present a case of DAA diagnosed prenatally. DAA can be diagnosed by prenatal ultrasound in the transverse three vessel-trachea view, which shows a trident image formed by a complete vascular ring and the ductus arteriosus.

[Ultrasound scan of the fetal thymus].

There is an increased interest nowadays on ultrasound analysis of the fetal thymus. Abnormal fetal thymic growth have been associated with DiGeorge syndrome, conotruncal cardiac malformations, chromosomal abnormalities and adverse outcome in different perinatal conditions as intrauterine growth restriction, preterm birth and others. Different methodologies that measure the fetal thymus by ultrasound have been published, however there is not a consensus of which one is the most useful.

[Prenatal ultrasonic diagnosis and follow-up of fetal splenic cysts: report of two cases. Review of the literature].

Congenital splenic cysts are rare entities wich are not frequently diagnosed in prenatal sonographies and there is only a few literature wich report these medical cases. The aim of this article is to introduce this sonographic discovery and study whether there are impacts for the newborn, association with cormosomopathy or fetal pathology. We describe two medical cases of fetal splenic cysts wich were diagnosed in our service by ultrasonography at 29 and 32 weeks of gestation, their antenatal monitoring and postnatal evolution.

[Perinatal outcome after prenatal diagnosis of intra-abdominal umbilical vein varix].

Background: Increased number of cardiovascular disorders diagnosed prenatally is not a consequence of a spontaneous growing, but of the advance in echographic techniques, specifically, high-resolution echography, color Doppler, a higher knowledge and systematization in exploring fetal anatomy.

Objective: To describe the sonographic findings and perinatal outcomes in cases with prenatal ultrasound diagnosis of intraabdominal umbilical vein varix (UVV).

Methods: Retrospective study of cases with prenatal ultrasound diagnosis of UVV.

[Perinatal outcome after prenatal diagnosis of intra-abdominal umbilical vein varix].

Background: Progress in echographic techniques, particularly, high-resolution echography and color Doppler, as well the higher deep on knowledge and systematization in fetal anatomy exploration, are the main responsible of the increased number of cardiovascular anomalies diagnosed prenatally.

Objective: To describe the sonographic findings and perinatal outcomes in cases with prenatal ultrasound diagnosis of intra-abdominal umbilical vein varix.

Material And Methods: A descriptive and retrospective study of cases with prenatal ultrasound diagnosis of umbilical vein varix.

[Diagnosis of isolated fetal aberrant right subclavian artery].

Unlabelled: A case of a fetal isolated aberrant right subclavian artery (ARSA) diagnosis and discuss its clinical implications and the methodology used to assess the fetal right subclavian artery by transabdominal ultrasound in normal cases and those with ARSA is reported.

Clinical Case: A 35-year-old pregnant woman in her twentieth week of pregnancy was evaluated at our Fetal Medicine Unit. An isolated ARSA was detected by a transabdominal ultrasound scan of the fetus.

Selective termination in dichorionic twins discordant for congenital defect.

Objective: To evaluate the perinatal outcome of selective termination in dichorionic twins discordant for congenital defect, performed at the Hospital General Universitario Gregorio Marañon.

Study Design: Twenty-eight dichorionic twins with an anomalous fetus were included from May 2008 to February 2011. Intracardiac KCl (1-2 ml; 15 mEq/ml) under ultrasonographic guidance was used in all procedures.