Port site metastasis in prostate cancer
Bibliographic record
Abstract
Port-site metastasis of prostatic adenocarcinoma is rare and usually associated with poor prognosis. We report a case of a young man with a rising prostate-specific antigen (PSA) 4.5 years after robot-assisted laparoscopic prostatectomy (RALP) and extended pelvic lymphadenectomy (ePLND) for a Gleason 7 (4+3) prostate cancer (pT3b pN0 cM0). Choline positron emission tomography-computed tomography (PET-CT) demonstrated a PET positive subcutaneous recurrence in a previous trocar site accompanied by a PET positive ipsilateral inguinal lymph node. Excision of both lesions was performed, confirming the diagnosis of metastatic prostate cancer. The patient's PSA dropped significantly postoperatively enabling postponement of androgen deprivation treatment up to this date. The etiology of port-site metastasis is multifactorial, including patient and surgery related factors. Such metastases have been scarcely reported following ePLND with or without RALP. Certain surgical precautions can be made to prevent the occurrence. We summarize previously reported mechanisms of development and possible precautionary measures.
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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 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".