Pleuroparenchymal Fibroelastosis: Associations and Underlying Conditions
Bibliographic record
Abstract
Pleuroparenchymal fibroelastosis (PPFE) is a clinicopathologic entity characterized by clinical presentation suggestive of a chronic idiopathic interstitial pneumonia, radiologic features of pleural and parenchymal involvement accentuated in the upper lobes, and a constellation of histologic findings including visceral pleural fibrosis and prominent fibroelastosis of the subpleural lung parenchyma. While the large majority of cases of PPFE have been considered idiopathic, development of PPFE in post-bone marrow transplant patients and in lung transplant recipients has recently been reported. Further, with the growing number of idiopathic PPFE cases reported in the literature, interesting patterns of association between PPFE and various clinical conditions – including prior treatment for malignancy, autoimmunity, recurrent infections, and vascular compromise/ischemia – are beginning to emerge. These associations, reviewed here, may offer clues into the pathogenesis of this rare condition. Keywords: Chronic lung allograft dysfunction, graft versus host disease, interstitial lung disease, pleuroparenchymal fibroelastosis, pulmonary fibrosis, pulmonary upper lobe fibrosis, restrictive allograft syndrome.
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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 | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".