A case of isolated metastasis to right level II cervical lymph node from intrahepatic cholangiocarcinoma
Bibliographic record
Abstract
Cervical lymphadenopathy is a common reason for referral to the Otolaryngology -Head & Neck Surgery clinic.The differential diagnosis is broad, and can include infectious, traumatic, anatomical, and neoplastic etiologies.Cervical lymph nodes are the primary site of metastasis for head and neck cancers, but have also been implicated in other forms of cancer, including primary tumors of the lung, gastrointestinal tract, and breast.The current case report outlines the diagnosis of metastatic intrahepatic cholangiocarcinoma, originally presenting as an isolated level II neck mass in an otherwise asymptomatic patient.Diagnosis was completed using a combination of radiological imaging, biopsy, and tumor biomarkers.This case report is the first with isolated metastasis to the level II nodal group from intrahepatic cholangiocarcinoma in an otherwise asymptomatic patient, and is the first to describe the specific treatment utilized in such a case.Neck mass evaluation is a common consult for all otolaryngologists.This case highlights the importance of both maintaining a broad differential when evaluating neck masses and when searching for a cancer with unknown primary
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.002 | 0.002 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.004 | 0.002 |
| Science and technology studies | 0.005 | 0.003 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.002 | 0.003 |
| Research integrity | 0.005 | 0.003 |
| Insufficient payload (model declined to judge) | 0.005 | 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".