Chronic Large Pericardial Effusion Due to Rare Yellow Nail Syndrome
Bibliographic record
Abstract
BACKGROUND: Yellow nail syndrome (YNS) is a rare disorder characterized by the triad of yellow nails, lymphedema, and respiratory manifestations. Rarely, pericardial effusion can occur and guidance on management is limited. CASE SUMMARY: A 71-year-old man presented with chronic large pericardial and pleural effusions, lower extremity lymphedema, and yellow nail discoloration. He was diagnosed with YNS, and several years later hypothyroidism was identified. Treatment with thyroid hormone led to improvement in his pericardial effusion and stabilization of pleural effusions. DISCUSSION: Pericardial involvement in YNS is rare, but can manifest as large effusions. In such cases, it is important to exclude concomitant reversible conditions such as hypothyroidism or autoimmune disease. This case suggests a common pathway between hypothyroidism and YNS pathophysiology with improvement after treatment, but not complete resolution. Chronic, large pericardial effusions in hemodynamically stable patients can safely be monitored with surveillance.
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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) | 0.000 | 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".