title: Renal epithelial fragments in urine from a nephrostomized patient: a case report.
abstract: Renal epithelial fragments, an infrequently reported entity, were observed by cytologists in urine sediment from a patient who underwent nephrostomy for the relief of a ureteral obstruction. This case report describes the occurrence and various cytomorphologic features of exfoliated renal fragments. Urine specimens obtained following the insertion of a nephrostomy tube can provide the cytologist a unique opportunity to study and distinguish renal epithelial fragments from those of urothelial origin.
mesh_terms: D004848:Epithelium / Q000473:pathology; D006801:Humans; D007668:Kidney / Q000473:pathology* / Q000601:surgery*; D016030:Kidney Transplantation; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011677:Punctures; D014517:Ureteral Obstruction / Q000601:surgery*; D014546:Urinary Catheterization; D014556:Urine / Q000166:cytology*