Sarcoidosis is a rare disease caused by inflammation. Sarcoidosis in the lungs is called pulmonary sarcoidosis. It causes small lumps of inflammatory cells in the lungs. These lumps are called granulomas and can affect how the lungs work.

Restless legs syndrome is a sleep disorder that causes creepy, crawly feelings in your legs. This often happens when you are trying to go to sleep or have been sitting for a long time.

Detailed information on the healthcare providers and specialists who treat disorders of the spine, shoulder, and pelvis.

Detailed information on the most common disorders of the spine, shoulder, and pelvis, including arthritis, ankylosing spondylitis, avascular necrosis, bursitis, hip problems, hip replacement, kyphosis, low back pain, neck problems, neck pain, torticollis,

A dislocated shoulder means the upper arm bone (humerus) has moved out of the shoulder joint. It can cause pain, swelling, numbness and trouble moving the shoulder.

Chronic pain is pain that lasts for more than three months. Learn more about symptoms, diagnosis, and treatments.

Detailed anatomical description of the spine, shoulder, and pelvis, including full-color, labeled illustrations.

A detailed look at ultraviolet (UV) light exposure, the UV index, and the types of UV rays, and how they affect your health.

Detailed information on the most common types of skin cancer

Detailed information on skin cancer, including anatomy of the skin, skin cancer facts, skin cancer causes, skin cancer types, cutaneous t-cell lymphoma, actinic keratosis, skin cancer treatment, sun-damaged skin, skin cancer prevention, sunscreen, and skin self examination