title: Giant kidney worm (Dioctophyma renale) infections in dogs from Northern Paraná, Brazil.
abstract: This article describes the pathological observations of Dioctophyma renale in dogs from the northern region of the State of Paraná, Brazil. A female, 6-year-old dog, Fila Brasileiro breed and a 16-year-old, male Poodle were diagnosed positive for D. renale during routine necropsy. Clinically, both dogs demonstrated hematuria, and the Poodle had a radiographic diagnosis of prostatic tumor, but neither had a clinical diagnosis of this infection prior to necropsy. Three giant worms were observed in the urinary bladder of the first case and one within the renal pelvis of the other dog. Histological findings were similar in both cases and represented compressive atrophy due to the presence of the nematode. Additionally, aspects of the life cycle, pathogenesis and epidemiology associated with this parasitism in Brazil are also discussed.
authors.affiliation: Departamento de Medicina Veterinária Preventiva Patologia, Centro de Ciências Agrárias, Universidade Estadual de Londrina, Campus Universitário, Rodovia Celso Garcia Cid, Pr 445 Km 380, Cx. Postal 6001, Londrina, Paraná 86051-990, Brazil.
authors.forename: Tizianne Larissa Duim Ribeiro
authors.initials: TL
authors.lastname: Nakagawa
authors.forename: Ana Paula Frederico Rodrigues Loureiro
authors.initials: AP
authors.lastname: Bracarense
authors.forename: Antônio Carlos Faria
authors.initials: AC
authors.lastname: dos Reis
authors.forename: Milton Hissashi
authors.initials: MH
authors.lastname: Yamamura
authors.forename: Selwyn Arlington
authors.initials: SA
authors.lastname: Headley
mesh_terms: D000818:Animals; D001938:Brazil / Q000453:epidemiology; D017159:Dioctophymatoidea / Q000302:isolation & purification*; D004283:Dog Diseases / Q000453:epidemiology* / Q000469:parasitology*; D004285:Dogs; D017189:Enoplida Infections / Q000453:epidemiology / Q000662:veterinary*; D005260:Female; D008297:Male