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- Celiac Disease and the Etiology of Lymphocytic Duodenosis: A Prospective Study
Celiac Disease and the Etiology of Lymphocytic Duodenosis: A Prospective Study
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According to this study 16% of those with lymphocytic duodenosis have celiac disease.
The research team was made up of I. Aziz, K. E. Evans, A. D. Hopper, D. M. Smillie, and D. S. Sanders. They are affiliated with the Department of Gastroenterology at Royal Hallamshire Hospital in Sheffield, UK.
The study came in response to earlier retrospective studies that have suggested different connections with lymphocytic duodenosis, indicating that patients with this condition should not be diagnosed with celiac disease, solely by histology.
Lymphocytic duodenosis is marked by normal villous architecture and less than 25 intraepithelial lymphocytes (IELs) per 100 enterocytes.
For their study, the team thoroughly evaluated one hundred patients with lymphocytic duodenosis for celiac disease and other aspects associatedwith lymphocytic duodenosis by using initial celiac blood screens, and excluding the presence of infection.
Of thirty-four patients with unexplained lymphocytic duodenosis, twenty-nine underwent repeat duodenal biopsies following a gluten challenge. Biopsy results showed that 16% of patients with lymphocytic duodenosis had celiac disease.
Once celiac disease was accounted for, the factors most commonly association with lymphocytic duodenosis were as follows: drugs were a factor in twenty-one percent of lymphocytic duodenosis patients; infection was a factor in nineteen percent, immune dysregulation was a factor in four percent, inflammatory bowel disease and microscopic colitis in two percent each, sarcoidosis and IgA deficiency in one percent of cases, respectively.
Of thirty-four patients with no known associations, eighteen showed symptoms of irritable bowel syndrome (IBS). Of twenty-nine patients examined with repeat duodenal biopsies, the IEL count returned to normal in twenty-two patients.
The study results show that known associations can be found in sixty-six percent of cases of lymphocytic duodenosis.
Importantly, sixteen percent will have celiac disease. In cases of lymphocytic duodenosis with no apparent cause, there may be a connection with IBS. In such cases the IEL count returns to normal on repeat biopsy in seventy-six percent.
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