Orbital Synovial Sarcoma: Novel Case Report and Review of the Literature
Bibliographic record
Abstract
PURPOSE: To describe the clinical, histologic, and molecular features of a rare case of orbital synovial sarcoma and to provide a comprehensive literature review. METHODS: The authors present a case report and up-to-date literature review of orbital synovial sarcoma. Variables analyzed included patient demographics, clinical presentations, imaging findings, histopathologic features, molecular diagnostics, treatment, and outcomes. RESULTS: A 25-year-old female presented with a left orbital mass causing swelling, tearing, and mild vision impairment. Imaging identified a mass in the inferior orbit, which was subsequently confirmed by pathology as a monophasic spindle cell synovial sarcoma. Notably, initial fluorescence in situ hybridization testing for the SS18 rearrangement was negative; however, next-generation sequencing later identified an SS18-synovial sarcoma X breakpoint protein 2 fusion. The patient underwent complete surgical resection, followed by proton beam radiotherapy and chemotherapy. A PubMed and Medline search revealed 10 prior cases of orbital synovial sarcoma. Most patients were female (90.9%) and presented with painless swelling, lacrimation, and headaches. All tumors were localized at diagnosis. Surgical resection was the primary treatment in 81% of cases, with adjuvant radiation or chemotherapy each administered in 36% of cases. No recurrence or metastasis was observed on follow-up (average 11.6 months). CONCLUSIONS: Orbital synovial sarcoma is rare and typically localized at diagnosis. This is the first reported orbital synovial sarcoma with an SS18-synovial sarcoma X breakpoint protein 2 fusion identified by next-generation sequencing after negative fluorescence in situ hybridization. The case underscores the diagnostic value of molecular profiling when standard testing is inconclusive.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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".