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What is lymphocytic colitis?

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Quick Answer

Lymphocytic colitis is a type of microscopic colitis that shows a heightened presence of lymphocytes and reflects inflammation in the intestines, according to the National Digestive Diseases Information Clearinghouse. Lymphocytes are a type of white blood cell found in the lining of the colon.

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What is lymphocytic colitis?
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Full Answer

The National Digestive Diseases Information Clearinghouse reports that lymphocytic colitis is similar in effects and treatment to another type of microscopic colitis, collagenous colitis; however, the former shows a normal-sized lining in the colon, while the latter shows inflation. The cause of lymphocytic colitis is unknown, but some evidence points to abnormalities in the immune system's response to normally harmless bacteria in the colon.

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