Abnormal growth patterns of the pelvic urothelium in the presence of renal calculi.
D002294:Carcinoma, Squamous Cell / Q000150:complications; D002295:Carcinoma, Transitional Cell / Q000150:complications; D004848:Epithelium / Q000473:pathology; D006801:Humans; D007669:Kidney Calculi / Q000150:complications / Q000473:pathology*; D007674:Kidney Diseases / Q000150:complications; D007680:Kidney Neoplasms / Q000150:complications; D007682:Kidney Pelvis / Q000473:pathology*; D008679:Metaplasia