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Uretrolitíase obstrutiva em equino / Obstructive urethrolithiasis in a horse

Macêdo, Juliana Targino Silva Almeida e; Biscarde, Carmo Emanuel Almeida; Nascimento, Karla Alvarenga; Ferreira Júnior, Jair Alves; Pedroso, Pedro Miguel Ocampos.
Acta Sci. vet.; 45(suppl.1): Pub. 238, 2017. ilus
Artigo em Português | VETINDEX | ID: vti-20095


Background: The presence of macroscopic concretions in the urinary system is called urolithiasis. In horses the occurrence is rare. The calculi are generally large and unique spicule concretions, composed of calcium carbonate crystals. Less commonly, the concretions are of mixed crystals of calcium carbonate and of calcium phosphate. The aim of the this work was to report a case of obstructive urethrolithiasis in a horse.Case: A 1-year-and-5-month-old, undefined breed, uncastrated male presented tenesmus, strangury, and dysuria. The horse died seven days after the onset of clinical signs and was referred for necropsy. At necropsy, samples were collected from organs of the abdominal cavity, thoracic cavity, central nervous system and integumentary system. The fragments were fixed in 10% formaldehyde, cleaved, routinely processed for histology and stained with hematoxylin and eosin. A urinary calculus collected during necropsy was sent for chemical analysis. In the abdominal cavity, a large quantity of citrus liquid of uremic odor was observed. Deposition of fibrin filaments in the peritoneum was observed, as well as in diaphragm and abdominal organs. Serosa of the small and large intestine was red with evidence of the capillaries. Kidneys presented multiple slightly protrusive white areas with a maximum diameter of 3 mm. When cutting, these areas were limited to the cortical region. There was rupture of the urinary bladder, diffuse loss of the mucosa with capillary exposure and evidence, as well as the deposition of fibrin and crude blood clots. The opening of the penile urethra presented a urolith of approximately 3.5 x 3 cm in size, with a rough and porous surface, light brown and of a stony consistency. Necrosis of the mucosa and hemorrhage were also observed in the urethra....(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1