EN
Two young cats of 8 and 15 weeks were presented with encephalopathic signs. A CT examination revealed hydrocephalus with a large accumulation of fluid. Cats underwent ventriculo-peritoneal shunting with a low-pressure valve. After 2 months, one cat showed neurological improvement and a decrease in ventricular size on CT scans. After 3.5 years, an MRI examination revealed a further decrease in ventricular size, and the cat was alive and well over the 5 years following initial presentation. The neurological status of the other cat did not improve, but a CT examination showed a decrease in ventricular size. After 2 years, the cat deteriorated suddenly, but improved after 2 weeks of pharmacological treatment. An MRI examination performed at the time showed no change in ventricular size. The condition of the cat was satisfactory for 22 month following the MRI examination.