P38.07: Prenatal US and MRI diagnosis of Fryns syndrome

Abstract

ensuing weeks the mass increased in size, causing compression of venous return with increase in pericardial effusion, development of cariomegaly with A-V valves regurgitation, polyhydramnios, and ascites. Pericardiocentesis was performed. By 34 wks the mass had grown to 43 × 44 mm with worsening cardiac failure; the baby was delivered by C/S followed by neonatal cardiac surgery (Fig 1b), but the baby died on the 5th day of life. Pathology analysis of tumor tissue showed invasive immature teratoma (Fig 1b-c). Discussion: Pericardial teratoma is generally a benign tumor, with good outcome after neonatal cardiac surgery. In this case the fastgrowing tumor proved to be a lethal invasive immature teratoma.