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