Abstract
Pediatric venous thromboembolism (VTE), although uncommon, can lead to serious morbidity and mortality. Cyanotic congenital heart diseases are one of the most common causes of VTE in children, especially when it is associated with other risk factors for thrombosis.We therefore report a case of right femoral vein thrombosis in a 36-day-old infant with transposition of the great arteries who had supraventricular tachycardia and bronchopneumonia.