Patients with NF1
| Location | No. of Patients (n=31) |
|---|---|
| Soft-tissue tumor without orbital involvement | 7 (22.6) |
| Radiologic orbital changes | 24 (77.4) |
| Distortion due to an enlarged middle cranial fossa | 13 (41.9) |
| Orbital-rim enlargement | 18 (58.1) |
| Associated with buphthalmos | 13 |
| Associated with a small maxillary sinus | 13 |
| Associated with tumor in the anterior orbit | 2 |
| Imaging evidence of tumor within the orbit | 19 (61.3) |
| Intraconal tumor | 13 |
| Globe (buphthalmos with or without enucleation) | 13 |
| Lacrimal gland | 11 |
| Extraocular muscle | 13 |
| Posterior orbit | 16 |
| Orbital bone | 18 |
| Expansion of the orbital foramen | 16 (51.6) |
| Expansion of the superior orbital fissure | 15 |
| Expansion of the inferior orbital fissure | 12 |
| Expansion of the optic canal | 8 |
| Optic nerve glioma only | 6 |
| PNF infiltration of the optic nerve sheath | 2 |
Note.—Data in parentheses are percentages.