Periódicos Brasileiros em Medicina Veterinária e Zootecnia

p. 01-05

Meningioma encefálico em cães

Chaves, Rafael OliveiraBeckmann, Diego VilibaldoCopat, BrunaFeranti, João Pedro ScusselOliveira, Marília Teresa deSouza, Fernando Wiecheteck deSchwab, Marcelo LuísMazzanti, Alexandre

Background: Meningioma is the most common brain tumor in dogs. These extra-axial tumors originate in one of the meninges, and arachnoid is the most common. Several retrospective studies of brain tumors are found in the international literature. However there are few researches in the national literature. The purpose of this study is to report twelve dogs with brain meningioma. The breed, gender, age, neurological signs, the brain location, the clinical evolution, the tumor classification and diagnostics tests were investigated. Cases: Twelve dogs were attended at Veterinary Hospital of Santa Maria University: six mixed-breeds; four Boxer; a Dachshund; and a Poodle. The age ranged from eight to 14 years, with average of ten years and nine months old. The clinical signs observed were generalized seizures (9/12); behavioral changes (6/12); walk in circle (5/12); swallowing difficulty (2/12 [16%]); hypermetria (2/12); central vestibular syndrome (1/12); and amaurosis (1/12). The presumptive diagnosis was brain neoplasm in all dogs. Six dogs were underwent symptomatic treatment with corticosteroids and anticonvulsants; two dogs were underwent corticosteroids; and four were euthanized without performing treatment. After starting treatment, four dogs (50%) showed clinical improvement in the first week, however, the clinical signs worsened after two weeks. The thalamus-cortex region [...](AU)

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