Sarcoidosis is a disease of unknown cause in which inflammation occurs in the lymph nodes, lungs, liver, eyes, skin, or other tissues.The cause of the disease is unknown.
Graft-versus-host disease(GVHD) is a complication that can occur after a bone marrow transplant in which the newly transplanted material attacks the transplant recipient''s body.
Graves disease is an autoimmune disorder that leads to overactivity of the thyroid gland( hyperthyroidism).The thyroid gland is an important organ of the endocrine system.