abnormal kidney collecting duct morphology kidney collecting duct atrophy 2012-11-30T03:43:16Z MP:0011844 csmith MPheno.ontology acquired diminution of the size of the kidney collecting ducts 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 collecting duct of renal tubule atrophy