Circular shunt is a condition in which blood from a cardiac chamber is diverted through the heart to return to the original chamber without reaching the pulmonary capillary bed. A 27-year-old pregnant woman, G1, P0, A0, 25 gestational weeks, was referred for fetal echocardiography due to an increased cardiac area on morphological obstetric ultrasound in the second trimester. She had no comorbidities, and early pregnancy ultrasound findings were normal. A 25-week fetal echocardiogram showed cardiomegaly, attachment of the tricuspid valve […]