GRANULOMATOUS ENTERITIS IN A YOUNG STANDARDBRED MARE

Granulomatous enteritis was diagnosed in a 4‐year‐old Standardbred mare suffering from chronic weight loss, depression, dependent oedema but not diarrhoea. There was hypoproteinaemia (hypoalbuminaemia), lymphocytopaenia and negligible carbohydrate absorption from the small intestine. Pathological changes in almost the entire small intestine included proprial infiltration resulting in partial villous atrophy, and granuloma formation beneath the muscularis which was most severe in the ileum. Slight infiltration occurred in the stomach and the colon. The cells were predominantly lymphocytes and histiocytes. No acid‐fast organisms were found