Cancer of the colon. Coloured barium enema X-ray of the human abdomen showing a cancer of the ascending colon; the tumour appears as the oval shadow over the right pelvic bone (left on image). Opaque to X- rays,barium is given orally (barium meal) for investigations of the oesophagus,stomach & duodenum and rectally (as a barium enema) to examine the rectum & colon. The colon (large intestine) consists of four sections - the ascending,transverse,descending and sigmoid colons. Here,the ascending colon rises at left,its transverse (horizontal) section appears in centre,and the descending part at right,which connects with the rectum via the sigmoid colon | |
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Crédit: | Science Photo Library |
Taille de l’image : | 3319 px × 4080 px |
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