A Figure 38(-s. /L. Preoperative roentgenogram in a ventricular septal defeet with a large left to right shunt and almonry ly pertension signiticant car'dlienegly, pranimenee ol the pulmonary arterial trink, anrl pulmonary overcirculation ure evident. I. Three vears after surgical closure nf iln defect. 'There is a marked decrease in tl heart size, anid the pulmonary vagctlanirc is normal7