abnormal mesangial cell morphology mesangial cell hypoplasia hypoplastic mesangial cells deep cell hypoplasia decreased mesangial cellularity 2011-11-08T04:12:43Z MP:0011428 csmith intercapillary cell hypoplasia intraglomerular mesangial cell hypoplasia decreased number of the phagocytic cells in the capillary tuft of the renal glomerulus, interposed between endothelial cells and the basement membrane in the central or stalk region of the tuft MPheno.ontology mesangial hypocellularity