parchment heart

parch·ment heart

a congenital or acquired condition in which there is thinning of the right ventricular myocardium. See: Uhl anomaly.
References in periodicals archive ?
According to the diontogenic theory, the absence of myocardium is thought to be the consequence of a congenital aplasia or hypoplasia of the right ventricular wall similar to the parchment heart characterized by gross cardiac structural defect present at birth, which was described by Uhl in 1952.
Fold bare half of each parchment heart over fish and vegetable stack so that cut edges meet evenly.