Gastric adenocarcinoma presenting as bloody ascites
Bibliographic record
Abstract
A 71-year-old male presented to hospital with 3 months of increasing abdominal distention and pain. CT showed large volume ascites and gastric wall thickening in the antrum. He had no history of significant alcohol use or other risk factors for cirrhosis. He underwent paracentesis, and 3 litres of homogenously bloody ascites fluid was removed. Ascites cytology showed discohesive malignant cells. Upper endoscopy showed a 10 cm circumferential gastric mass. Biopsies revealed a diagnosis of gastric adenocarcinoma. The presence of homogenously bloody ascites can be a startling finding to healthcare providers. The differential diagnosis for bloody ascites includes hepatocellular carcinoma or other malignancy, hemorrhagic pancreatitis, perforated ulcers/varices, blunt trauma, and iatrogenic (suggested by recent paracentesis, transjuglar intrahepatic portosystemic shunt, or other procedure). The presence of bloody ascites in an otherwise relatively asymptomatic individual should prompt a search for malignancy. This case highlights a rare presentation of gastric adenocarcinoma as bloody ascites.
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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) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.003 | 0.002 |
| 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".