has part has part has_part characteristic of has modifier small kidney kidney atrophy MPheno.ontology acquired diminution of the size of the kidney 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 renal atrophy MP:0003013 MP:0004970 abnormal atrophied kidney