SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY
Spinal cord tumour. Coloured frontal computed tomography (CT) scan through the lower back of a patient with a spinal neurinoma or neurilemmoma (blue, centre). The scan has passed through the patient's backbone, showing the spinal cord (pale blue) running down the vertebral canal (orange) inside the blocks of bone (vertebrae, blue) of the backbone. A neurinoma is a benign slow-growing tumour of a nerve sheath. At this level (T10-11), this large tumour is compressing the spinal cord, causing pain and threatening paralysis. It can be surgically removed. The nervous tissue has been imaged following the injection of a contrast dye into the surrounding fluid (myelography).
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