Avaliação tomográfica de tumor maligno de bainha de nervo periférico em canino

Abstract

Tomography scanning is one of the most widely used diagnoses to evaluate brain tumors, which makes it possible to detect the location, appearance and perfusion characteristics through the use of contrast media. This work aims to describe the clinical, tomographic and pathological aspects of an elderly canine with malignant peripheral nerve sheath tumor. A 12-year-old male poodle, who had recurrent seizures despite the use of anticonvulsants. Tomography scan demonstrated the presence of a mass in the cranial portion of the olfactory and right frontal lobes, evidencing post-contrast enhancement and osteolysis area in a portion of the frontal bone. After death, the animal was submitted to macro and microscopic examinations. Morphological evaluation and immunohistochemical findings indicated malignant peripheral nerve sheath tumor.