Clinicopathologic Features and Magnetic Resonance Imaging Findings in 24 Cats With Histopathologically Confirmed Neurologic Feline Infectious Peritonitis

Crawford, A.H.; Stoll, A.L.; Sanchez-Masian, D.; Shea, A.; Michaels, J.; Fraser, A.R.; Beltran, E.

Hematologic and serum biochemical tests are performed as indirect diagnostic tests for FIP. Commonly identified abnormalities include chronic nonregenerative anemia, leukocytosis with neutrophilia and lymphopenia, increased serum protein concentration associated with high globulin and low albumin concentrations, and a low albumin:globulin ratio. 1, 7 Unexpectedly, in our series, 32% of cats had normal hematology and biochemistry finding and a further 32% had either normal hematology or biochemistry findings. Thus, the absence of hematologic or biochemical abnormalities does not exclude a diagnosis of FIP.