title: 'Porcelain kidney': case report and review of the literature.
abstract: A rare case of pan-subepithelial dystrophic calcium deposition and bone marrow formation in hydronephrosis secondary to obstructive urolithiasis is reported and discussed. An elderly gentleman presented with accelerated hypertension, a nonfunctioning left kidney secondary to obstructive nephrolithiasis with additional pancalyceal calcification. His left retroperitoneoscopic nephrectomy specimen revealed sterile hydronephrosis secondary to an impacted ureteropelvic junction stone and pan-subepithelial fibrocalcific lamellar deposition. Special stains confirmed end-stage renal disease with chronic pyelonephritis with subepithelial dystrophic calcium deposition and evidence of bone marrow formation.
authors.affiliation: Department of Anatomy, University College of Medical Sciences, Delhi, India.
authors.forename: Surbhi
authors.initials: S
authors.lastname: Wadhwa
authors.forename: Shitij
authors.initials: S
authors.lastname: Bali
authors.forename: Pankaj
authors.initials: P
authors.lastname: Wadhwa
mesh_terms: D001853:Bone Marrow / Q000473:pathology; D002114:Calcinosis / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology / Q000601:surgery; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology; D007668:Kidney / Q000473:pathology* / Q000601:surgery; D007674:Kidney Diseases / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology / Q000601:surgery; D007676:Kidney Failure, Chronic / Q000209:etiology; D008297:Male; D008875:Middle Aged; D016624:Negative Staining; D009392:Nephrectomy; D011704:Pyelonephritis / Q000209:etiology; D016896:Treatment Outcome; D052878:Urolithiasis / Q000150:complications