C

• A to Z: Cellulitis

  Learn more about cellulitis, an infection of the skin and underlying tissues.

• A to Z: Cellulitis, Orbital

  Learn about orbital cellulitis, a dangerous infection affecting the eye and its surrounding tissue and skin.

• A to Z: Central Line Infection

  A central line — a tube surgically placed into a blood vessel — can be a convenient way to receive medicine through a vein over a long period of time, but it carries the risk of infection.

• A to Z: Central Sleep Apnea

  Learn more about this condition, in which abnormal brain signals cause a person’s breathing to stop and start repeatedly during sleep.

• A to Z: Cerebellar Ataxia

  Learn about cerebellar ataxia, the loss of muscle coordination caused by disease or injury to the cerebellum.

• A to Z: Cerebral Palsy, Infantile

  Cerebral palsy (CP) is a brain disorder that affects muscle tone and motor skills (the ability to coordinate body movements).

• A to Z: Cervicalgia

  Learn about causes of neck pain and conditions that can affect the cervical spine.

• A to Z: Chalazion

  A chalazion is a lump on the inner side of the eyelid. It occurs when one of the small oil glands becomes blocked.

• A to Z: Charcot-Marie-Tooth Disease

  Learn about neurological disorders and conditions that affect the arms and legs.

• A to Z: Cholangitis

  Learn more about infections and problems of the liver and biliary tract.