The diffuse form of EE is seen in the dog, cat and horse; it is described as idiopathic but the aetiology has been suggested to be a hypersensitivity reaction. In this form of the condition, recurrent episodes of diarrhoea with tissue and circulatory eosinophilia occurs, with a heavy infiltrate of eosinophils present histologically in all layers of the stomach and intestines. | The diffuse form of EE is seen in the dog, cat and horse; it is described as idiopathic but the aetiology has been suggested to be a hypersensitivity reaction. In this form of the condition, recurrent episodes of diarrhoea with tissue and circulatory eosinophilia occurs, with a heavy infiltrate of eosinophils present histologically in all layers of the stomach and intestines. |