Hypertrophic infundibular stenosis of the calyces of the kidney.
D003094:Collagen; D003937:Diagnosis, Differential; D006801:Humans; D006869:Hydronephrosis / Q000473:pathology*; D006984:Hypertrophy / Q000473:pathology; D007682:Kidney Pelvis / Q000473:pathology*; D009130:Muscle, Smooth / Q000473:pathology
D003094:Collagen