What is (are) Polyarteritis nodosa ?
Polyarteritis nodosa is a serious blood vessel disease in which medium-sized arteries become swollen and damaged. It occurs when certain immune cells attack the affected arteries preventing vital oxygen and nourishment. Signs and symptoms may include fever, fatigue, weakness, loss of appetite, weight loss, muscle and joint aches, and abdominal pain. The skin may show rashes, swelling, ulcers, and lumps. When nerve cells are involved numbness, pain, burning, and weakness may be present. Polyarteritis nodosa can cause serious health complications including strokes, seizures, and kidney failure. Treatment often includes steroids and other drugs to suppress the immune system.