Spontaneous Hemomediastinum Associated with Neurofibromatosis 1: Report of a Case
Bibliographic record
Abstract
A 59 years old female with a past medical history of neurofibromatosis, malignant peripheral nerve sheath tumor on chemotherapy was admitted for acute respiratory failure secondary to health care associated pneumonia. During the admission, she was suddenly found to be tachycardiac with decreased right sided breath sounds and a 3 mg/dl drop in hemoglobin. A chest x-ray showed a widened mediastinum. Computed tomography (CT) revealed right paramediastinal hematoma and a pseudo-aneurysm arising from the right internal mammary artery. She received four units of packed red blood cells. In line with her health care proxyi?½s decision, surgical intervention was withheld and she was conservatively managed for two weeks. She gradually improved, was discharged with a stable hemoglobin of 10.2 g/dl. Spontaneous hemomediastinum is an uncommon and often life threatening event. Neurofibromatosis 1 (NF1, von Recklinghauseni?½s disease) is a rare cause of effusion of blood into the mediastinum. The intercostal, subclavian and bronchial arteries are the commonest vessels involved in mediastinal hematomas. Only one case of internal mammary artery involvement has been documented so far. Here, we describe a case of spontaneous mediastinal hemorrhage as a result of pseudoaneurysmal rupture of the right internal mammary artery.
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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 | 0.001 | 0.008 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| 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 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".