A Surgically Relevant Celiac Trunk Variant featuring Retro‐portal Blood Supply to the Gallbladder and the Right Lobe of the Liver
Bibliographic record
Abstract
Variations in celiac trunk anatomy have surgical, radiological and clinical significance, as the derivative arteries (common hepatic, splenic, and left gastric arteries are typically direct branches, all of which course in front of the portal vein in most individuals) supply the liver, stomach, duodenum, pancreas, and spleen. Here we describe a rare celiac trunk variant noted in routine dissection for undergraduate medical students in a 52-year-old male cadaver in which a celiac trunk gives rise to one (left) inferior phrenic artery and two common stems. The first common stem gives rise to left gastric and replaced right hepatic arteries. Notably, the replaced right hepatic artery courses retro-portally and culminates in several branches that supply the right lobe of the liver, in addition to supplying the gallbladder via a cystic artery found within the cystohepatic triangle. The second common stem gives rise to common hepatic and splenic arteries. Awareness of this specific anomaly, particularly the retro-portal right hepatic artery, will have clinical relevance to surgical interventions and radiologic imaging concerning the right side of the liver, the gallbladder, the pancreas and the duodenum. Awareness of this variant will also be relevant to trans-arterial chemo-embolization and trans-arterial radio-embolization approaches for hepatic tumours.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".