Diagnosis in Addison's Disease	

In a patient with suspected adrenocortical insufficiency, the clinical sign of pigmentation will nearly always distinguish primary adrenocortical insufficiency from secondary adrenocortical insufficiency due to either hypothalamic or pituitary disease. 
The differential diagnosis usually lies between autoimmune adrenalitis  and tuberculous Addison's disease.

See later:
• Adrenocortical Insufficiency