Urinary bladder carcinoma suggestive of enzootic hematuria with secondary hydronephrosis in a Holstein cow

Abstract

A three-year-old Holstein cow, in the third month of her second lactation, was evaluated at the New York State College of Veterinary Medicine in February 1987 for a depressed appetite and decreased milk production of one month’s duration. The cow had calved uneventfully and milk production had peaked at nearly 100 lbs per day prior to illness. Early in the course of disease, she had received a 7-10 day regimen of systemic penicillin from the owner without any apparent beneficial response. No treatments were administered within the two weeks immediately prior to presentation at the Large Animal Clinic. At the time of admission to the Large Animal Clinic, her daily milk production was between 5 to 20 pounds