Abstract
We report a neonate with distal bilateral ductus arteriosus origin of nonconfluent pulmonary arteries which was only diagnosed accurately by 2-D echo Doppler color flow mapping in the context of situs ambiguous, univentricular A-V connection and pulmonary atresia with normal systemic/pulmonary venous drainage. The color flow appearance of this singular vascular anatomy was enhanced after prostaglandin administration, which, allowed us to see an image resembling a "moustache morphology". At 36 months of age, and after a successful bilateral 4 mm modified Blalock Taussig shunt implantation by sequential approach, the patient is waiting for the next surgical step which will include a restoration of the confluence of the pulmonary arteries with bidirectional Glenn operation. Brief embryological and differential diagnosis comments are discussed.
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