Case of the Week #638

Lech Dudarewicz
Department of Genetics, Polish Mother's Memorial Hospital, Lodz, Poland

Posting Dates: Oct 15, 2025 - Oct 30, 2025

A 36-year-old pregnant woman with non-contributory anamnesis was referred to our center at 12 weeks and 6 days of gestation following suspicion of fetal abnormalities on a routine first-trimester (11–14 weeks) scan performed elsewhere.

Ultrasound findings are presented below.  What is the most likely diagnosis?

Video 1 © 2025 Lech Dudarewicz
Video 2 © 2025 Dudarewicz

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