Post feline infectious peritonitis progressive hydrocephalus: a case series

Progressive post-FIP hydrocephalus should be a differential for cats re-presenting with neurologic signs after treatment for FIP with GS-441524. As the treatment is now legally available in the United States, more cases are likely to occur. It is important to differentiate these progressive post FIP hydrocephalus cases from relapses of FIP, as prognosis and treatment differ.