Learn about this rare type of aggressive thyroid cancer. Treatment typically involves surgical removal of the thyroid gland.
Learn more about what happens when blood flow to part of the digestive system is reduced, and how this serious condition is treated.
Learn about symptoms, tests and treatment for hyperparathyroidism — a condition caused by overactivity of the parathyroid glands.
A firm, round lump in breast tissue could be a fluid-filled cyst. Typically not cancerous, breast cysts often need no treatment.
This disease of the heart muscle makes it harder for your heart to pump blood to the rest of your body. Learn the different types and how they're treated.
Calcium supplements can interfere with absorption of medications used to treat hypothyroidism.
An interruption in the nerve signals from the brain to the eye causes Horner syndrome, affecting the eye and face on one side.
Read about symptoms, causes, treatment and tips for prevention of this parasitic infection that for some people, can cause severe complications.
This group of uncommon disorders affects people who have cancer, and occurs when parts of the immune system attack parts of the nervous system.
Tuberous sclerosis is a rare genetic disorder that causes noncancerous (benign) tumors ― unexpected overgrowths of normal tissue ― in parts of the body.