TIM VERNON / SCIENCE PHOTO LIBRARY TIM VERNON / SCIENCE PHOTO LIBRARY
Oesophageal cancer. Illustration showing a malignant (cancerous) tumour at the base of the oesophagus, where it meets the stomach. This is an uncommon cancer that causes pain and difficulty swallowing. If left untreated, it can block the oesophagus or spread to other parts of the body.
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