Benign hemorrhagic adrenal cysts are a cause of subdiaphragmatic mass in the fetus and neonate with Beckwith-Wiedemann syndrome. Characteristic imaging features on ultrasonography, color Doppler, and magnetic resonance imaging help differentiate adrenal hemorrhage from neonatal neuroblastoma and help avoid unnecessary surgery in these patients. Bilateral adrenal hemorrhage is self-limiting, and spontaneous resolution is the usual outcome. This report presents this rare condition with prenatal ultrasonographic and magnetic resonance imaging findings and reviews the differential diagnosis of neonatal adrenal masses.

We report the usefulness of multidetector CT angiography (CTA) in the diagnosis of interrupted aorta of a neonate. CTA is useful for evaluating malformations of the aortic arch, particularly in cases that cannot undergo conventional angiography or in which detailed information cannot be provided by echocardiography.

The pathogenesis of thrombosis in neonates is multi-factorial. Along with underlying diseases or triggering events, congenital prothrombotic factors (FV G1691A and PT G20210A) showed a trend toward a higher frequency in neonates with thrombosis. These data indicate that mutations associated with underlying disorders in neonates may contribute to the development of thromboembolic disease.

We report for the first time, a premature infant with multiple intracardiac thrombi and sepsis, who was heterozygous for the G20210A prothrombin gene variant. Anticoagulant treatment with low molecular weight heparin resulted in the complete disappearance of the thrombi. It may be suggested that prothrombin gene variant associated with sepsis, respiratory distress syndrome, and perinatal asphyxia, as well as other thrombophilic disorders, could be a risk factor for the development of neonatal thrombus.