Valsalva-Induced Orbital and Subcutaneous Periorbital Emphysema Secondary to Lamina Papyracea Dehiscence: A Case Report
Bibliographic record
Abstract
Introduction: Pneumo-orbit and periorbital subcutaneous emphysema secondary to defects in the sinus wall have been well described in the context of traumatic or surgical sequelae. However, these conditions may rarely occur atraumatically in the setting of an idiopathic or congenital sinus wall dehiscence, with a risk for orbital compartment syndrome and irreversible vision loss. We describe a case of idiopathic lamina papyracea dehiscence with resultant pneumo-orbit and elevated intraocular pressure. Case Presentation: A 28-year-old man experienced a sudden onset of unilateral orbital and subcutaneous periorbital emphysema following Valsalva maneuver. He had unilateral subcutaneous emphysema, crepitus, violaceous discoloration of the lids, and chemosis of the palpebral conjunctiva. Visual acuity was intact, and intraocular pressure was mildly elevated. Imaging showed an idiopathic lamina papyracea dehiscence. The patient was advised of sinus precautions with uneventful spontaneous resolution and no visual sequelae. Conclusion: Lamina papyracea dehiscence predisposes to spontaneous Valsalva-induced orbital or periorbital emphysema with a risk of elevated intraocular pressure, optic neuropathy, and vision loss; prompt recognition and early management can prevent vision-threatening sequelae.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.002 | 0.002 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.003 | 0.002 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.005 | 0.004 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".