Abstract
A nine-year-old, male, neutered domestic shorthair cat was referred with a three-month history of abnormal behavior. On neurological examination, the cat showed circling towards the left. Magnetic resonance imaging of the brain revealed an extra-axial mass at the level of the left forebrain surrounded by a large peritumoral (pseudo)cyst. A left-sided rostrotentorial craniectomy to drain the fluid and to remove the tumor was performed. On histopathologic examination, the presence of a meningioma was confirmed. The owners did not report any clinical signs one year postoperatively.
Highlights
Meningioma is the most commonly reported primary brain tumor in cats (Troxel et al, 2003; Troxel et al, 2004; Tomek et al, 2006)
Multiple meningiomas are not uncommon in cats and have been reported in 10% of cats diagnosed with intracranial neoplasia, and in 17.2% of cats diagnosed with intracranial meningioma (Troxel et al, 2003; Forterre et al, 2007)
A cystic meningioma has only been reported in one cat in the literature (Troxel et al, 2004) and to the authors’ knowledge, this is the first case report of a peritumoralcystic meningioma in a cat
Summary
Meningioma is the most commonly reported primary brain tumor in cats (Troxel et al, 2003; Troxel et al, 2004; Tomek et al, 2006). The clinical signs, MRI findings and treatment of a cat with a peritumoral (pseudo)cystic meningioma are described. The MRI findings were consistent with an extra-axial mass in the area of the left frontal and parietal lobes, most likely representing a meningioma with a large peritumoral (pseudo)cyst.
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