CYSTIC MENINGIOMAS IN 2 DOGS

Two dogs with signs of forebrain disease had hypodense lesions on comp uted tomography evaluation. Magnetic resonance imaging of the first do g showed a hypointense lesion on the T1-weighted scan and a hyperinten se lesion on T2-weighted scanning. At surgery, both dogs had a primary cystic intracranial lesion, and the abnormal tissue adjacent to the c yst had histological features of meningioma. Each dog underwent whole brain irradiation after surgery, and 1 dog lived for 3 years after tre atment. While uncommon, meningioma should be considered as a different ial diagnosis in dogs with cystic intracranial lesions. Copyright (C) 1996 by the American College of Veterinary Internal Medicine.