Unlike in cats, which much more frequently develop hyperthyr…

Unlike in cats, which much more frequently develop hyperthyroidism, dogs much more commonly develop hypothyroidism.  These diseases differ greatly, and are in many ways opposites.  Explain the causes of hypothyroidism, how is it diagnosed, common clinical signs, treatment options. a) Brief description of hypothyroidism: b) Causes of hypothyroidism: c) How is hypothyroidism diagnosed? d) Common clinical signs: e) What are treatment options for this disease?