EP09.115: Partial anomalous pulmonary venous connection scimitar type: clues to prenatal diagnosis

Partial anomalous pulmonary venous connections (PAPVC) s an uncommon anomaly in which some of the pulmonary veins abnormally connect and drain into the systemic venous circulation. Right pulmonary veins draining into the inferior vena cava in association with ipsilateral pulmonary hypoplasia and cardiac dextroposition constitutes the so-called scimitar syndrome. This syndrome is a rare congenital anomaly with low rate of antenatal detection. We describe a series of two cases with scimitar syndrome detected prenatally by means of fetal echo and RMI, with postnatal confirmation and follow up. We highlight the characteristics that led to the diagnosis. Suspicion in one of the cases was done at 12 weeks but the anomalous venous returns could only be demonstrated later on pregnancy. Fetal MRI was used in both cases to reaffirm diagnosis which was confirmed after birth. Various studies have addressed the prenatal echocardiographic diagnosis of this syndrome. However, reaching a prenatal diagnosis remains a challenge. We review in this presentation the findings that may lead to a successful prenatal diagnosis.