the following diseases show a particular predisposition in aged dogs and cats : the dog exhibits especially non-inflammatory skin diseases , cardiopathies , chronic diseases of the respiratory tract , oral cavity , liver , kidneys and urinary tract , diseases of the cns , and tumours , whereas the cat suffers from the leukaemia complex , to a lesser extent from non-inflammatory skin and cardiac diseases , also from chronic diseases of the oral cavity , gastrointestinal tract , liver , kidneys and urinary tract , endocrine system , and tumours .
C0012634
diseases
C0037274
skin diseases