Jargon buster

A comprehensive list of the terms and words you will come across in relation to brain tumours.

L

Lesion

An area of abnormal tissue.

Lethargy

Abnormal drowsiness/sleepiness and inactivity.

Listeria

A type of bacteria that can cause food poisoning. Symptoms include diarrhoea, nausea and fever.

Lymph

The fluid in the lymphatic system - a network of glands, particularly in the armpits, neck and groin - that drains away waste fluid and products, such as damaged cells. It also contains cells that fight infection.

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