Crohn’s Disease Manifesting as a Duodenal Obstruction: An Unusual Case
Bibliographic record
Abstract
We describe a case of a 31-year-old man who presented with a 3-year history of worsening upper abdominal pain, nausea, and vomiting: symptoms that were resistant to medical treatment and unexplained despite a thorough diagnostic evaluation. Then, an upper gastrointestinal series with small bowel follow-through showed proximal duodenal dilation and distal decompression of the duodenum, suggestive of a partial duodenal obstruction. An abdominal computed tomography (CT) scan revealed a transition point in the distal duodenum. At surgery, a segmental resection of the distal duodenum with a duodenojejunal anastomosis was performed. Histopathologic examination of the specimen revealed Crohn's disease. Therefore, making the diagnosis of duodenal obstruction has significant clinical implications and, in the setting of Crohn's disease, is evidence of an underlying intestinal stricture, stenotic area, or adhesion.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.005 |
| Meta-epidemiology (narrow) | 0.003 | 0.002 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.004 | 0.003 |
| Science and technology studies | 0.005 | 0.002 |
| Scholarly communication | 0.003 | 0.002 |
| Open science | 0.001 | 0.003 |
| Research integrity | 0.008 | 0.004 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".