Which of the following is an example of an organ-specific autoimmune disease?

rheumatoid arthritis

psoriasis

Addison disease

myasthenia gravis

The correct answer is option - Addison disease.

Explanation:

Organ-specific autoimmune disease is an autoimmune disease that attacks or acts against specific organs or tissue, unlike the systemic autoimmune disease. Some examples of organ-specific autoimmune diseases are graves disease, type I diabetes and Hashimoto thyroiditis and Addison's disease.

Addison disease is an organ-specific disease as it acts against its healthy tissues. this condition results in less cortisol due to the damage of the adrenal cortex.

Thus, the correct answer is option - Addison disease.