A59 A RARE PRESENTATION OF COLLAGENOUS GASTRODUODENITIS WITH 10 YEAR FOLLOW UP
Why this work is in the frame
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Bibliographic record
Abstract
Abstract Background Collagenous gastritis(CG) is a rare form of gastritis defined histologically by the presence of >10um of subepithelial surface collagen deposition. CG can further be categorized in childhood onset CG and adult onset CG. The prevalence of childhood CG is 2.1/100,000 in children aged younger than 18. Adult onset CG remains a rare entity. Here, we describe a rare presentation of collagenous gastroduodenitis in an adult patient and the interval progression over a 10 year period. Aims To increase awareness of a rare condition with limited data on available treatment modalities and clinical outcomes in adults. Methods Case Report Results A 35 year old female with no past medical history presented with worsening fatigue and increased shortness of breath with no overt gastrointestinal bleeding symptoms. There was no previous history of radiation exposure or family history of autoimmune disease. Laboratory investigations revealed iron deficiency anemia with a hemoglobin of 69 and a ferritin of 11. TTG serology and anti-parietal antibody was also negative. Esophagogastroduodenoscopy biopsies confirmed the diagnosis of collagenous gastritis localized to the gastric body with the presence of acute and chronic inflammatory changes. The patient was started on proton pump inhibitor therapy. In the interval period, the patient denies any new onset of gastrointestinal symptoms other than occasional heartburn. She remains iron deficient and requires regular iron infusions. Follow up endoscopy 10 years later now demonstrates diffuse mucosal abnormalities with a nodular contour involving the entire stomach and extending into the duodenal bulb. Biopsies showed features compatible with collagenous gastroduodenitis with active inflammation and pyloric metaplasia(Figure 1). There was atrophy of the stomach mucosa with no parietal cells identified and no endocrine hyperplasia. Immunostaining for Helicobacter pylori was negative. Flexible sigmoidoscopy was also performed revealing endoscopically normal colonic mucosa to the descending colon. Conclusions CG is a rare disease entity with unclear pathogenesis. Multiple case reports describe some association with autoimmune disease such as celiac disease. To date, no standard treatment has been identified for the management of CG. CG presents endoscopically with nodular changes, mucosal atrophy and collagen deposition. Over time, adult onset CG can progress to involve the entire stomach. Clinically, adult onset CG usually presents with a diarrhea predominant phenotype with associated collagenous colitis. Treatment modalities that have been trialed include PPI, corticosteroids, sucralfate, azathioprine,5-aminosalicylates, iron supplementation and hypoallergenic diets. Here we describe a rare presentation of collagenous gastroduodenitis and subsequent 10 year follow up in order to better understand this disease entity. Funding Agencies None
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it