Too long a thrombus in transit: Complication of femoral venous cannulation in a sick neonate

Abstract

A 27-day-old boy weighing 2300 g was referred for evaluation of hepatomegaly with swelling of the abdomen and feet. He had been admitted to a neonatal intensive care unit with pseudomonas sepsis and was on intravenous antibiotics via a right femoral venous catheter. Clinical evaluation showed features of right heart failure with no cardiomegaly or murmur. What is the echocardiographic diagnosis?