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….

Also called lymph glands. Small, beanshaped structures that form part of the lymphatic system. They collect and destroy bacteria and viruses.