abnormal outflow tract development abnormal conotruncus morphology abnormal conotruncal ridge morphology abnormal aortico-pulmonary spiral ridges MP:0010585 abnormal conotruncal cushions abnormal outflow tract cushion morphology abnormal conotruncal cushion morphology MPheno.ontology any structural anomaly of the pair of spiral mesenchymal swellings in the primordial ventricular outflow tract, that eventually fuse to form the conotruncal septum, dividing the subvalvular outflow tract and contributing to the membranous interventricular septum abnormal conotruncal ridges abnormal bulbar ridge morphology abnormal endocardial ridges csmith abnormal outflow tract endocardial cushion morphology 2010-10-05T02:18:13Z