This male infant was the product of a full-term uncomplicated pregnancy with Apgar scores of 8 and 9 at 1 and 5 minutes after birth, respectively. At birth the skin of the lower extremities from below the umbilicus was pale, and then it became cyanotic (Fig 1). On physical examination the infant was alert and moved all extremities symmetrically. He was afebrile with a heart rate of 140 beats per minute and a respiratory rate of 50 breaths per minute. Blood pressure in the right arm was 70/50 mm Hg and in the left arm, 88/44 mm Hg. The femoral pulses were not palpable. The central hematocrit value was 0.65. The lungs were clear to auscultation. There was no organomegaly. The chest roentgenogram was normal. Echocardiography was performed as well as two-dimensional real-time ultrasonography of the abdomen (Fig 2).
Denouement and Discussion
Idiopathic Aortic Thrombosis
The echocardiogram revealed a
Leonor MQ, Shelton L, Sun ER, Wood BP. Radiological Cases of the Month. Am J Dis Child. 1990;144(8):935-936. doi:10.1001/archpedi.1990.02150320099037