CAMAL / ISM / SCIENCE PHOTO LIBRARY CAMAL / ISM / SCIENCE PHOTO LIBRARY
Rectal cancer. Endoscopic view of a malignant (cancerous) adenocarcinoma (lower right) in a patient's rectum, the final section of the large intestine). Adenocarcinoma is a cancer of the epithelium (cavity-lining tissue) that originates in glandular tissue. Colorectal cancer is the third most common form of cancer, and the second most common cause of cancer deaths in the western world.
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