A small dark spot on the skin that arises from skin cells called melanocytes. Also called a mole….

Small masses of lymphatic tissue on either side of the back of the mouth that help to fight infection….

A small, permanent tube used to drain fluid build-up in the brain….

Small openings in the oral cavity that release saliva into the mouth. The ducts are connected to the salivary glands….

A scan using small amounts of radioisotope to find areas of bone where there is cancer….

A small machine, usually attached to a finger or toe, that measures how much oxygen is in the blood….

A small medical appliance installed beneath the skin. A tube called a catheter connects the port to a vein so that fluids can be passed into the body. Also called an infusaport….

Positron emission tomography. A scan in which a person is injected with a small amount of radioactive glucose solution. Cancerous areas show up brighter in the scan because they take up more of the glucose….

The surgical removal of a growth using a small, spoon-shaped instrument with a sharp edge called a curette.

A surgical technique that involves several small cuts instead of one large cut on the abdomen. Also called keyhole or laparoscopic surgery….