Aneurysmal Bone Cyst Associated with Fibrous Dysplasia
Bibliographic record
Abstract
We report the clinicopathologic features of a 22-year-old patient with aneurysmal bone cyst and fibrous dysplasia of the orbit. The patient was evaluated clinically with computed tomography of the orbit before surgery. An orbital biopsy specimen was examined histologically with conventional light microscopy. The lesion was treated with combined neurosurgical and orbital intervention. Clinical evaluation revealed axial and inferior displacement of the globe. Computed tomography revealed a cystic mass in the superotemporal left orbit with adjacent bone erosion. "Ground-glass" thickening of the adjacent frontal bone and sphenoid bone was observed. Microscopic examination showed fibrous stroma with giant cells and hemosiderin-laden macrophages with adjacent trabeculae of woven bone and osteoblast cells. A fronto-orbital craniotomy was performed, the cystic cavity was excised, and the hyperostotic bone was debulked. After treatment, the globe position and patient appearance have improved. There has been no sign of recurrence of the aneurysmal bone cyst. Aneurysmal bone cyst should be considered in patients with fibrous dysplasia that has a cystic component, or in patients with fibrous dysplasia who present with sudden expansion of their lesion.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".