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You are here : AllRefer.com > Health > Diseases & Conditions > Colon cancer : Pictures & Images

Colon cancer

Alternate Names : Colorectal cancer, Cancer - colon, Rectal cancer, Cancer-rectum, Adenocarcinoma- colon, Colon -adenocarcinoma


Pictures & Images

Barium enema
Barium enema

The barium enema is a valuable diagnostic tool that helps detect abnormalities in the large intestine (colon). The barium enema, along with colonoscopy, remain standards in the diagnosis of colon cancer, ulcerative colitis, and other diseases of the colon.

Colonoscopy
Colonoscopy

There are 4 basic tests for colon cancer: a stool test (to check for blood); sigmoidoscopy (inspection of the lower colon; colonoscopy (inspection of the entire colon); and double contrast barium enema. All 4 are effective in catching cancers in the early stages, when treatment is most beneficial.

Digestive system
Digestive system

The esophagus, stomach, large and small intestine, aided by the liver, gallbladder and pancreas convert the nutritive components of food into energy and break down the non-nutritive components into waste to be excreted.

Rectal cancer, x-ray
Rectal cancer, x-ray

A barium enema in a patient with cancer of the rectum.

Sigmoid colon cancer, x-ray
Sigmoid colon cancer, x-ray

A barium enema in a patient with cancer of the large bowel (sigmoid area).

Spleen metastasis - CT scan
Spleen metastasis - CT scan

This CT scan of the upper abdomen shows multiple tumors in the liver and spleen that have spread (metastasized) from an original intestinal cancer (carcinoma).

Structure of the colon
Structure of the colon

The large intestine is a long hollow organ lined with mucous membrane (mucosa). Muscle layers wrap around the entire length and help move food material through to the rectum.

Large intestine
Large intestine

The large intestine is the portion of the digestive system most responsible for absorption of water from the indigestible residue of food. The ileocecal valve of the ileum (small intestine) passes material into the large intestine at the cecum. Material passes through the ascending, transverse, descending and sigmoid portions of the colon, and finally into the rectum. From the rectum, the waste is expelled from the body.

Stages of cancer
Stages of cancer

The staging of a carcinoma has to do with the size of the tumor, and the degree to which it has penetrated. When the tumor is small and has not penetrated the mucosal layer, it is said to be stage I cancer. Stage II tumors are into the muscle wall, and stage III involves nearby lymph nodes. The rare stage IV cancer has spread (metastasized) to remote organs.

The large intestine
The large intestine

The large intestine (or colon, or large bowel) is the last structure to process food, taking the undigestible matter from the small intestine, absorbing water from it and leaving the waste product called feces. Feces are expelled from the body through the rectum and the anus.

Colon polyps
Colon polyps

When polyps are discovered in a sigmoidoscopy (an inspection of the lower third of the large intestine), they are retrieved to be tested for cancer. If a large amount of polyps are found, a more thorough examination of the entire length of the large intestine (a colonoscopy) may be recommended.

Colon cancer - series
Colon cancer - series

Browse through illustrations for Colon cancer - series

Colostomy  - series
Colostomy - series

Browse through illustrations for Colostomy - series

Large bowel resection  - series
Large bowel resection - series

Browse through illustrations for Large bowel resection - series





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