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 2016-11-13  Case of the week # 437  © Moshe Bronshtein
Answer to the case of the week # 437
January 19, 2017 - February 2, 2017.

Moshe Bronshtein, MD.
Haifa, Israel.

Case report

A 30-year old  woman with unremarkable history and IVF treatment came to our office for a routine examination at 15 weeks of pregnancy.
It was a twin pregnancy and we found the following anomaly in one of the fetuses. No other abnormal findings were found. 
Based on the ultrasonographic findigs the diagnosis was a congenitally corrected transposition of the great arteries.

Images 1 and 2; videos 1 and 2:
the images show transverse and sagittal images of the fetal heart. A atrioventricular and ventriculoarterial discordance were noted. Morphological left ventricle is located on the right side of the thorax and the morphological right ventricle is located on the left side.
The right atrium is on the right side, and connects to the morphological left ventricle; the left atrium is on the left side and connects to morphological right ventricles. Assesment of the outflow tracts shows the pulmonary artery arising from the right-sided morphologic left ventricle and the aorta arising from the left-sided morphologic right ventricle in a parallel course. 

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