Lymphocytic colitis

Micrograph of lymphocytic colitis. HPS stain.

Lymphocytic colitis is a subtype of microscopic colitis, a condition characterized by chronic non-bloody watery diarrhea.[1][2]

## Contents

* 1 Causes
* 2 Diagnosis
* 3 Treatment
* 4 History
* 5 See also
* 6 References
* 7 External links

## Causes

No definite cause has been determined. The peak incidence of lymphocytic colitis is in persons over age 50; the disease affects twice as many women as men.[3] Some reports have implicated long-term usage of NSAIDs, proton pump inhibitors, and selective serotonin reuptake inhibitors, and other drugs. Associations with other autoimmune disorders suggests that overactive immune responses occur.[4]

## Diagnosis

The colonoscopy is normal but histology of the mucosal biopsy reveals an accumulation of lymphocytes in the colonic epithelium and connective tissue (lamina propria). Collagenous colitis shares this feature but additionally shows a distinctive thickening of the subepithelial collagen table.[1][2]

## Treatment

Budesonide, in colonic release preparations, has been shown in randomized controlled trials to be effective in treating this disorder.[5][6]

Over-the-counter antidiarrheal drugs may be effective for some people with lymphocytic colitis. Anti-inflammatory drugs, such as salicylates, mesalazine, and systemic corticosteroids may be prescribed for people who do not respond to other drug treatment. The long-term prognosis for this disease is good with a proportion of people suffering relapses which respond to treatment.[1]

## History

Lymphocytic colitis was first described in 1989.[7]

## See also

* Colitis
* Paratuberculosis
* Latent tuberculosis

## References

1. ↑ 1.0 1.1 1.2 "Microscopic colitis: Current status, present and future challenges: statements of the European Microscopic Colitis Group.". J Crohns Colitis 6 (9): 932–45. 2012. doi:10.1016/j.crohns.2012.05.014. PMID 22704658.
2. ↑ 2.0 2.1 "Systematic review: are lymphocytic colitis and collagenous colitis two subtypes of the same disease - microscopic colitis?". Aliment Pharmacol Ther 36 (2): 79–90. 2012. doi:10.1111/j.1365-2036.2012.05166.x. PMID 22670660.
3. ↑ Hempel, Kelby A.; Sharma, Anuj V. (2024), "Collagenous and Lymphocytic Colitis", StatPearls (Treasure Island (FL): StatPearls Publishing), PMID 31082144, https://www.ncbi.nlm.nih.gov/books/NBK541100/, retrieved 2024-09-26, "There is a female preponderance in both collagenous and lymphocytic colitis. The female-to-male ratio of collagenous colitis is 3.0 and is 1.9 in lymphocytic colitis."
4. ↑ Park, T; Cave, D; Marshall, C (7 August 2015). "Microscopic colitis: A review of etiology, treatment and refractory disease.". World Journal of Gastroenterology 21 (29): 8804–10. doi:10.3748/wjg.v21.i29.8804. PMID 26269669.
5. ↑ Chande, N; Al Yatama, N; Bhanji, T; Nguyen, TM; McDonald, JW; MacDonald, JK (13 July 2017). "Interventions for treating lymphocytic colitis.". The Cochrane Database of Systematic Reviews 7 (11). doi:10.1002/14651858.CD006096.pub4. PMID 28702956.
6. ↑ "Collagenous and lymphocytic colitis. evaluation of clinical and histological features, response to treatment, and long-term follow-up.". Am J Gastroenterol 98 (2): 340–7. 2003. doi:10.1111/j.1572-0241.2003.07225.x. PMID 12591052.
7. ↑ "Lymphocytic ("microscopic") colitis: a comparative histopathologic study with particular reference to collagenous colitis". Hum. Pathol. 20 (1): 18–28. 1989. doi:10.1016/0046-8177(89)90198-6. PMID 2912870.

## External links

Classification|

* MeSH: D046730
* DiseasesDB: 30087

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External resources|

* eMedicine: med/1351

* NIH
* eMedicine.com

* v
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Diseases of the digestive system (primarily K20–K93, 530–579)

Upper GI tract|

| Esophagus|

* Esophagitis
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Peritoneal|

* Peritonitis
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