has part has part has_part characteristic of part of has modifier abnormal vein morphology abnormal hepatic vein morphology 2010-09-28T02:54:04Z any structural anomaly of the veins that drain blood from the liver and terminate in three large openings to the inferior vena cava below the diaphragm and into smaller openings in more inferior positions MP:0010439 csmith MPheno.ontology morphology abnormal hepatic vein