abnormal kidney medulla morphology kidney atrophy kidney medulla atrophy 2011-11-08T03:48:01Z MP:0011422 MPheno.ontology acquired diminution of the size of the inner portion of the kidney consisting of the renal pyramids, associated with wasting as from death and reabsorbtion of cells, diminished cellular proliferation, decreased cellular volume, pressure, ischemia, malnutrition, reduced function or malfunction, or hormonal changes atrophic kidney medulla atrophic renal medulla csmith kidney medullary atrophy kidney medullary wasting renal medulla atrophy renal medullary atrophy renal medullary wasting