MDCT evaluation of intramyocardial-sinusoids-coronary artery communications in a neonate with pulmonary atresia and intact ventricular septum.

A patient of tetrology of Fallot with complete atresia of the pulmonary outflow tract with ventriculocoronary connections is presented.MDCT imaging revealed left coronary sinus, with a large fistula draining into the free wall of hypoplastic right ventricular cavity with tortuous channel arising from right ventricular outflow, and communicating with proximal limb of the fistula forming a complete loop suggesting a right ventricle–to – left coronary sinus sinusoid. [ABSTRACT FROM AUTHOR]