Hydrocele and Unexpected Diagnosis: Malignant Mesothelioma of Tunica Vaginalis Testis
Bibliographic record
Abstract
Testicular mesothelioma originating from tunica vaginalis is a very rare disease. A 70-year-old man complained of left testicular swelling and was operated with the clinical diagnosis of hydrocele. Intra-operative examination revealed diffuse thickening of tunica vaginalis, which was thought to be inflammatory and benign by the urologist. Nevertheless an incisional biopsy was performed and atypical mesothelial proliferation was reported in histopathology. Morphologic findings were insufficient for definitive diagnosis of malignancy. Patient was followed-up for ten months. Due to the persistance of paratesticular thickening and additional appearance of nodularities, left inguinal orchiectomy was performed. Microscopy revealed classical malignant mesothelioma originating from tunica vaginalis. Two years after the diagnosis, patient had metastases to the paraaortic lymph nodes. Malignant mesothelioma of the testis may represent with diagnostic difficulties both clinically and pathologically. In all cases where paratesticular tissues may deviate from normal, mesothelioma must enter into the differential diagnosis. doi:10.4021/jmc396w
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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 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.002 | 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 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".