Diffuse malignant epithelial mesotheliomas of the peritoneum in women
Bibliographic record
Abstract
BACKGROUND: The behavior of diffuse peritoneal mesotheliomas in women and the possible relation between tumor morphology and outcome are uncertain. Reported survival has ranged from < 1 month to > 14 years, and a previous study found that tumor morphology could not be used reliably for predicting outcome. The authors examined the behavior of diffuse epithelial peritoneal mesotheliomas in women and the possible relation between pathologic features and outcome. METHODS: Twenty-five female patients with diffuse peritoneal epithelial malignant mesotheliomas were divided into two groups: those who survived for < 4 years (60%) and those who survived for > 4 years (40%). Both groups were compared in terms of age, presentation, treatment, survival, tumor architecture, mitotic rate, necrosis, nuclear grade, and immunohistochemical profile. RESULTS: Patients in the two groups were similar in terms of age at diagnosis (median ages, 50.7 years and 49.9 years), presentation, initial tumor burden, and treatment. In both groups, the most common initial clinical presenting features were ascites and abdominal pain. The tumors typically took the form of multiple nodules measuring < 1.5 cm in greatest dimension. Slightly less than 50% of patients in both groups received some form of chemotherapy or radiation therapy after undergoing tumor-reductive surgery or biopsy. Overall survival ranged from 1 month to 15 years. The median survival was 12 months in the group of women who survived for < 4 years and 7 years in the group of women who survived for > 4 years. Overall, 10 of 25 patients survived for > or = 5 years. One patient was alive with disease 15 years after diagnosis. Although there was a suggestion that the tumors in patients with short survival more often had solid architecture and high-grade nuclei, these findings were not significant statistically. The frequency of necrosis and the mitotic activity were the same in both groups. CONCLUSIONS: The spectrum of diffuse epithelial peritoneal mesotheliomas in women includes tumors that are highly aggressive and behave much like pleural mesotheliomas, although a sizeable number of tumors, unlike the pleural tumors, are relatively indolent. However, because there do not appear to be morphologic features that reliably identify favorable tumors versus unfavorable tumors, aggressive therapy for all women with diffuse peritoneal mesotheliomas may be warranted.
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How this classification was reachedexpand
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) | 0.000 | 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) | 0.002 | 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 teacher head, 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".