Variations of intestinal malrotation in adults
Bibliographic record
Abstract
INTRODUCTION: Intestinal malrotation is a rare congenital abnormality occurring in 0.2-1% of the population. Adult presentations comprise only 0.2-0.5% of all cases leading to diagnostic challenges and worse outcomes in adults. We present a rare case of chronic/intermittent midgut volvulus with unique anatomic findings in an adult with intestinal malrotation. PRESENTATION OF CASE: An 18-year-old Caucasian male presented to a community hospital with abdominal pain, nausea, and vomiting. He underwent a CT scan demonstrating concern for small bowel volvulus and subsequently underwent a negative exploratory laparotomy. He was discharged post-operatively with no identified etiology for his presentation. He subsequently had multiple presentations to the ED with recurrent symptoms, review of imaging led to concern for duodenal volvulus resulting in transfer to a tertiary hepatobiliary centre. Repeat CT scan two weeks following initial presentation was consistent with intestinal malrotation with midgut volvulus. Bloodwork was unremarkable and physical exam demonstrated normal vital signs with a tender epigastrium. He underwent an exploratory laparotomy with Ladd's procedure. Intra-operative findings included a midgut volvulus and uniquely positioned Ladd's bands to the transverse colon. Post-operatively he tolerated oral intake and was discharged with three-month follow-up. DISCUSSION: Adults with intestinal malrotation suffer from delays in diagnosis and management. In contrast to the neonatal population, adults often present with vague, or chronic symptoms, which obscures the diagnosis. CONCLUSION: The increased morbidity and mortality observed in adults with intestinal malrotation highlights the need for surgeons to appreciate the challenges associated with this diagnosis in the adult population to ensure early recognition and management.
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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 | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.007 | 0.002 |
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".