Medullary Thyroid Carcinoma without Marked Elevation of Calcitonin: A Diagnostic and Surveillance Dilemma
Why this work is in the frame
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Bibliographic record
Abstract
Calcitonin is a sensitive tumor marker for medullary thyroid cancer (MTC) and is useful in preoperative diagnosis and postoperative surveillance for recurrent disease. Calcitonin-negative MTC is a rare occurrence. We present the case of a 68-year-old man with a 6.5 cm sporadic MTC with a 5-cm metastasis in the neck, but only minimally elevated serum calcitonin levels. He underwent total thyroidectomy, resection of internal jugular vein, and limited ipsilateral lymph node dissection. He remains disease-free 12 months after surgery. We review the literature on calcitonin-negative MTC and discuss methods of postoperative surveillance in this subset of patients.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 it