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Note: This is a series of images of CT scan in the diagnosis, staging and therapeutic follow-up of colorectal cancers, which I prepared for a talk that I had to give to general practitioners. By ‘prepared’ I mean I had selected representative images and annotated them to show the abnormality to laymen. So this series is not going to be exhaustively informative or educative. I would suggest places like this and this for more information on colorectal cancers for health professionals and patients who stumble in here from search engines.

Descending Colon

Coronal & sagittal MPR images (above & below) from a plain CT scan with air-distended large bowel show an ‘apple core‘ mass (white arrows) in the proximal  Descending colon with luminal occlusion.

Coronal MPR contrast-CT image shows the apple core mass (white arrows) in the proximal Descending colon. Water, given as negative contrast enema is seen in the large bowel lumen. Oral contrast is seen within small bowel loops in the pelvis. Intravenous contrast enhancement is seen in the abdominal organs and blood vessels.

Another coronal MPR image (more anterior) shows the same mass (yellow arrows) and a small metastatic deposit in the Liver (black arrow).

For further information on colorectal cancers:

US National Cancer Institute’s Colon and Rectal Cancer Home Page and this online booklet for patients.

Mayo Clinic’s Colon Cancer Page.

Other posts in this series:

• CT scan in Colorectal Cancer
• CT in Colorectal Cancer - 2
• CT in Colorectal Cancer - 3
• CT in Colorectal Cancer - 4
• CT in Colorectal Cancer - 5

Tags: colorectal cancer, Computed Tomography

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