Monochorionic Twin Discordance for Horseshoe Lung and Tricuspid Atresia.

The horseshoe lung is a congenital malformation in which the bases of the right and the left lung are fused. We describe a monochorionic twin gestation with malformation discordance. The abnormal twin had a horseshoe lung with hypoplasia of the right lung, tricuspid atresia, cleft lip, and a pelvic right kidney.

Prediction of adverse pregnancy outcomes by extreme values of first trimester screening markers.

Background: To determine the association between extreme values of first trimester markers and adverse pregnancy outcomes.

Methods: A retrospective cohort study of 916 women who underwent first-trimester combined screening during 2015 was performed. Extreme values of NT, pregnancy-associated plasma protein-A (PAPP-A) and free β-hCG, and their association with adverse pregnancy outcomes were analyzed.