Diffuse Type Pancreatic Ductal Adenocarcinoma: The Linitis Plastica Type of the Pancreas
Bibliographic record
Abstract
Pancreatic malignant tumors are diverse and characterized by aggressive nature with high mortality rates. Pancreatic ductal adenocarcinoma (PDAC) is the most common type of pancreatic malignant tumors and accounts for approximately 90% of pancreatic malignancies. A subtype of PDAC, diffuse type PDAC (DTP), is a very rare and underreported tumor, known for its aggressive traits. Although little data are available about this tumor subtype characteristics, it usually presents with distinct features that are different from the known ones in PDAC. Herein, we present a case of a 61-year-old male patient, who presented with abdominal discomfort, weight loss and newly diagnosed diabetes mellitus. An abdominal computed tomography (CT) scan showed an ill-defined mass at the uncinate process with diffuse dilatation of the main pancreatic duct. Endoscopic ultrasound (EUS)-guided fine-needle biopsy showed cellular atypia suspicious for malignancy. The patient underwent total pancreatectomy with Roux-en-Y reconstruction. His postoperative course was uneventful. The final histopathological report showed well-differentiated diffuse ductal adenocarcinoma involving the pancreatic head, neck and body.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| 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) | 0.004 | 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".