What is throat cancer? Throat cancer is any cancer that forms in the throat. The throat, also called the pharynx, is a 5-inch-long tube that runs from your nose to your neck. The larynx (voice box) and pharynx are the two main places throat cancer forms. Throat cancer is a type of head and neck cancer, which includes cancer of the mouth, tonsils, nose, sinuses, salivary glands and neck lymph nodes. Learn about the types of throat cancer.
Rathke's cleft cyst. A Rathke's cleft cyst is a benign growth found on the pituitary gland in the brain, specifically a fluid-filled cyst in the posterior portion of the anterior pituitary gland. It occurs when the Rathke's pouch does not develop properly and ranges in size from 2 to 40mm in diameter.
Devic's disease, or neuromyelitis optica, (NMO) is a type of inflammatory demyelinating disease. A demyelinating disease occurs when the myelin sheath, a protective covering that surrounds brain and spinal cord nerves is damaged.In the case of Devic's disease, the patient develops myelitis (inflammation of the spinal cord) and optic neuritis (inflammation of the optic nerve). NMO is an example of an autoimmune disease. 2  Experts are not sure why autoimmune diseases, such as NMO occur. 3  The immune system of a patient with NMO attacks the myelin sheath, the protective blanket for the spinal cord and optic nerve.