20.0 MB (2.3 MB compressed)
2980 x 2346 pixels
25.1 x 19.8 cm ⏐ 9.9 x 7.8 in (300dpi)
FRANCOIS L'HOPITAL / ISM / SCIENCE PHOTO LIBRARY FRANCOIS L'HOPITAL / ISM / SCIENCE PHOTO LIBRARY
Cancer of the rectum, endoscope view. The ulcerated tumour (upper centre) is an adenocarcinoma, a type of colorectal cancer arising from glandular epithelial tissue. Adenocarcinoma accounts for 90-95 per cent of all colorectal cancers and develop from adenomas (adenomatous polyps), the benign version of the cancerous tumour. Certain dietary habits, such as a diet high in fat, appear to be significant risk factors.
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