Case of the Week # 657

Lech Dudarewicz (1), Beata Nowakowska (2), Agnieszka Gach (1), Javier Cortejoso (3)
(1) Department of Genetics, Polish Mother's Memorial Hospital, Lodz, Poland; (2) Laboratory of Cytogenetics, Department of Medical Genetics, Institute of Mother and Child, Warsaw, Poland; (3) Centro Médico Recoletas, Valladolid, Spain

Posting Dates: Aug 31, 2026 - Sep 14, 2026

This fetus was examined at the end of the first trimester because of markedly increased nuchal translucency. The crown-rump length corresponded to approximately 13 weeks of gestation, and the nuchal translucency measured 7.5 mm. Targeted early neurosonography was performed.