Exérèse chirurgicale d’un méningiome intracrânien chez un chat

Intracranial meningioma is the most frequent intracranial neoplasia in cats. This case report describes the case of a 9-year-old neutered male cat presenting central neurological signs. Magnetic resonance imaging shows an extra-axial, intracranial mass being the source of a severe cerebral oedema with intracranial hypertension causing cingulate, transtentorial and foramen magnum herniations. During the exam, the cat’s clinical status deteriorates and the acquisitions are interrupted to stabilise the patient. Computed tomography is then performed to strengthen the suspicion and to plan the treatment. In this case, the treatment of choice is the surgical excision by bilateral rostrotentorial craniectomy. The excision of the mass is performed and histopathological analysis confirms the diagnosis of meningioma. No postoperative complication occurred and the cat is still in perfect general and neurological status nine months later. Intracranial meningiomas being generally benign and non-invasive to the underlying parenchyma, their surgical excision offers a very good prognostic with reported mean survival times ranging from 23 to 37 months. Other therapies can be considered in case of recurrence or impossible resection.