title: Juvenile nephropathy in a Boxer dog resembling the human nephronophthisis-medullary cystic kidney disease complex.
abstract: A juvenile nephropathy in a 4-year-old male Boxer dog, closely resembling the Nephronophthisis (NPHP)-Medullary Cystic Kidney Disease Complex (MCKD) in humans is described. Gross examination of the kidneys revealed several multiple cysts at the corticomedullary junction and in the medulla. Histological examination was characterized by a widespread tubular atrophy and dilatation, with a marked thickening of the tubular basement membrane, interstitial lymphocytic infiltration and fibrosis. Ultrastructural studies revealed dilated tubules with irregular basement membrane thickening and splitting. Lectin histochemistry investigation revealed that the cysts originated in the distal convoluted tubule and collecting duct. Having excluded all other known cystic diseases of the kidney, and based on the lectin histochemistry results, the macroscopic and histological findings of our case are highly compatible with a diagnosis of the NPHP-MCKD complex. To our knowledge, this is the first report describing this particular lesion.
authors.affiliation: Centro Nefrologico Veterinario, Catania, Italy. angelofrancescobasile@gmail.com
authors.forename: Angelo
authors.initials: A
authors.lastname: Basile
authors.forename: Andrea
authors.initials: A
authors.lastname: Onetti-Muda
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Giannakakis
authors.forename: Tullio
authors.initials: T
authors.lastname: Faraggiana
authors.forename: Luca
authors.initials: L
authors.lastname: Aresu
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000473:pathology*; D004285:Dogs; D007674:Kidney Diseases / Q000473:pathology / Q000662:veterinary*; D008297:Male