Peritumoral (pseudo)cystic meningioma in a cat

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.