Concurrent Septal and Right Ventricular Aneurysms Detected on Second Trimester Ultrasound Scan: A Case Report

Congenital aneurysms and diverticula of the heart are rare anomalies and their prenatal diagnosis is challenging. Fetuses with suspected cardiac aneurysms on ultrasound (US) screening should undergo targeted fetal echocardiography, postnatal imaging, and follow-ups. Herein, we describe the second trimester US scan and postnatal cardiac magnetic resonance imaging (MRI) findings of a baby girl with concurrent septal and right ventricular cardiac aneurysms. Other cardiac and extra-cardiac structures were normal. Upon consultation about the prognostic uncertainty of the situation, the family chose to continue the pregnancy. The rest of the pregnancy and birth was without any complications. Follow-up postnatal echocardiograms showed no progression regarding the size of the aneurysms. The baby is still on follow-up without any medication and is thriving. To the best of our knowledge, this case report is the first to show the prenatal diagnosis of two concurrent rare cardiac aneurysms.