A common viral illness in children caused by the human parvovirus B19. The symptoms include a rash that looks as though the face has been slapped.

A group of tropical diseases caused by various parasitic worms.

The withdrawal of fluid or cells from a bodily structure, such as a cyst, through a syringe, to enable further analysis

Fluorescence in situ hybridisation - a technique for the detection of genetic abnormalities.

An abnormal channel between two parts of the body, for example between a hollow organ and another hollow organ, or between the inside and the outside of the body.

A type of allergic reaction to a medicine. They characteristically recur in the same site or sites each time a particular medication is taken.

Term to describe an episode when the symptoms of a condition worsen.

Term to describe episodes when the symptoms of a condition worsen.

Compounds found in some fruits and vegetables that have antioxidant effects.

One of a group of antibiotics.

A viral infection affecting the respiratory system.

A technique for assessing the blood vessels in the retina, using a dye to see the vessels more clearly.

The use of an image intensifier and TV monitor to view X-ray images.

One of the B vitamins, involved in the production of red blood cells.

A vitamin in the group of vitamin Bs.

Inflammation of one or more hair follicles as a reult of a staphylococcal infection.

One of the two membrane-covered spaces between the bones of a baby's skull. At birth, the skull bones are not fully fused and two soft areas can be felt through the scalp.

The opening between the two upper chambers (atria) of the heart of the fetus, which normally closes at birth. The term 'foramen ovale' may also be used to describe the large hole at the base of the skull.

The basic building blocks of many lipids.

The elastic band of tissue under the head ot the penis that connects to the foreskin.

An inherited disease that causes progressive damage to the nervous system.

A rare form of dementia where memory is preserved, but personality and behaviour alter dramatically.

An abbreviation for follicle-stimulating hormone, a hormone produced by the pituitary gland.

The appearance of the retina when viewed through an opthalmoscope.