A condition in which pale brown patches appear on the forehead, cheeks, and nose.

A type of ovarian cyst associated with endometriosis. Because it responds to hormonal changes of the menstrual cycle it fills with blood during menstruation and this turns a dark brown colour, hence the description.

Inflammation of the bile duct.

The surgical removal of the gallbladder.

Acute or chronic inflammation of the gallbladder causing severe abdominal pain.

Stagnation of bile in the small bile ducts in the liver, leading to jaundice and liver disease.

A rare but serious condition in which skin cells proliferate and grow inwards from the ear canal.

A substance present in many tissues and an important constituent of cell membranes although high concentrations of a certain type of cholesterol in the blood are unhealthy.

Benign, small, painful nodules that occur on the ear caused by inflammation of skin and cartilage.

Softening and damage to the cartilage at the back of the knee-cap.

A malignant cancer occurring during pregnancy, usually developing from tissue that would normally form the placenta. It may grow out of a hydatidiform mole.

A layer of tissue situated at the back of the eye behind the retina.

Cancer of the eye.

Inflammation of the choroid and retina.

A form of haemophilia.

Structures in the cell nucleus that carry genetic information.

A disease of long duration generally involving slow changes.

Very frequent headaches, often without any apparent underlying cause, possibly due to a heightened response to pain signals.

A condition causing extreme fatigue over a prolonged period, sometimes years.

A type of leukaemia resulting in high levels of mature but abnormal cells called lymphocytes in the bloodstream.

A type of leukaemia that affects all the blood cells except the lymphocytes and progresses relatively slowly if left untreated.

Emphysema and bronchitis; often associated with smoking and air pollution. Abbreviated to COPD.

A structure in the eye containing muscles that alter the shape of the lens to adjust focus.

An abbreviation for cervical intraepithelial neoplasia, abnormal changes in the cervix of the uterus that may resolve spontaneously, or may progress to cervical cancer.