Donetsk's regional specialized center of medical genetic and prenatal diagnosis, Ukraine.
Case report
A 30-year-old women (G7 P3) was referred to our center at 33 weeks of gestation. Her family history of congenital diseases was negative as well as her personal history and she didn’t undergo any chemotherapy treatment. She delivered 3 healthy children and 3 of her pregnancies were spontaneous abortions. Her first trimester scan at 13 weeks of gestation did not show any abnormalities.
Our ultrasound examination at 33 weeks revealed the following findings:
Cardiac
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Mesocardia (the axis of the interventricular septum was almost anteroposterior)
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Atrioventricular canal, incomplete form
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Hypoplasia of the aortic arch, coarctation of the aorta
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Interruption of the inferior vena cava with azygos continuation
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Persistent left superior vena cava
Central nervous system
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Corpus callosum agenesis
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Dandy-Walker variant
Head
Abdomen
Our ultrasound findings can be divided into two groups: 1) typical collection of cardiac and central nervous system anomalies for left isomerism, 2) typical collection of facial and skull dysmorphisms for Carpenter syndrome. Our diagnosis based on the ultrasound findings was Left atrial isomerism associated with Carpenter syndrome.
The parents opted for the termination of the pregnancy due to an adverse prognosis for the fetus. Unfortunately, parents did not wish for autopsy or genetic testing. They agreed to have their own karyotyping done and both had a normal karyotype. Clinical examination of the fetus confirmed our diagnosis.Â
Images 1,2: 4-chamber view, note that the heart axis is deviated towards the midline. (*)indicate atrial appendages. Atrioventricular valves are inserted at the same level of the interventricular septum.