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circinate balanitis

A form of skin inflammation around the penis in men with Reiter's syndrome.

cirrhosis

scarring of the liver.

claudication

A cramp-like pain in a muscle, most often in the legs, due to inadequate blood supply.

cleft palate

A split in the upper lip and/or the palate that is present at birth.

CLL

An abbreviation for chronic lymphocytic leukaemia, a type of leukaemia resulting in high levels of mature but abnormal cells called lymphocytes in the bloodstream.

clot

Blood that has coagulated, that is, has moved from a liquid to a solid state.

clotting factor

A substance that can undergo a cascade of reactions in certain conditions, leading to the clotting of blood. Also known as coagulation factor.

clotting factors

A group of substances that can undergo a cascade of reactions in certain conditions, leading to the clotting of blood. Also known as coagulation factors.

clotting studies

A group of laboratory tests used to establish how quickly and well blood clots (coagulates).

clubbing

Thickening of the ends of the fingers occurring in several diseases

cluster headache

A type of frequent headache that recurs regularly in clusters, with pain-free intervals in between, and is associated with a runny nose (rhinitis) and increased tear production

CML

An abbreviation for chronic myeloid leukaemia, a type of leukaemia that affects all the blood cells except the lymphocytes and progresses relatively slowly if left untreated.

CNS

central nervous system

coagulation factor

A substance that can undergo a cascade of reactions in certain conditions, leading to the coagulation of blood. Also known as clotting factor.

coagulation factors

A group of substances that can undergo a cascade of reactions in certain conditions, leading to the coagulation of blood. Also known as clotting factors.

coagulation screen

A combination of laboratory tests designed to assess the blood clotting quality of blood.

cocaine

A narcotic drug extracted from coca leaves.

coccydynia

Pain in the coccyx (tailbone).

cochlea

Spiral shaped organ situated in the labyrinth of the inner ear.

coeliac disease

A condition in which the lining of the small intestine becomes damaged by oversensitivity to gluten, a protein found in wheat, rye and other cereals.

coeliac screen

A series of screening blood tests to help to diagnose Coeliac disease.

cold coagulation

The destruction of abnormal cells in the cervix of the uterus (womb) with a hot probe - 'cold' in the name is misleading.

cold sore

A spot or blister around the mouth and nose area caused by infection with the herpes simplex virus

colectomy

The surgical removal of the colon.