"Anatomically corrected malposition": a rare case with bilateral absence of a complete subarterial muscular infundibulum.

A unique case of anatomically corrected malposition of great arteries with a bilateral absence of a complete subarterial muscular infundibulum is presented. The other unusual feature of the case was absence of any complex associations and interestingly an intact ventricular septum. The presenting lesion was valvar pulmonary stenosis and balloon valvotomy could not be achieved because of abnormal relationship of the great vessels.