Table 1.
The histopathological classification of 110 adult patients with orbital lesions
| Category and subcategory | Number of patients (%) |
|---|---|
| Lymphoproliferative | 29 (26.4) |
| MZBCL | 6 (20.7) |
| DLBCL | 5 (17.2) |
| BRLH | 5 (17.2) |
| Lymphoma, NOS | 5 (17.2) |
| Follicular lymphoma | 3 (10.3) |
| Low grade B-cell lymphoma | 2 (6.9) |
| Lymphoplasmacytic lymphoma | 1 (3.5) |
| Mantle cell lymphoma | 1 (3.5) |
| T-cell lymphoma | 1 (3.5) |
| Vascular | 24 (21.8) |
| Cavernous hemangioma | 20 (83.3) |
| AVM | 2 (8.3) |
| Lymphangioma | 1 (4.2) |
| Vascularized bony tumor | 1 (4.2) |
| Secondary/origin | 16 (14.6) |
| SCC of eyelid | 5 (31.3) |
| SCC of conjunctiva | 4 (25.0) |
| SGC of eyelid | 4 (25.0) |
| Nasopharyngeal carcinoma | 2 (12.5) |
| SCC of lacrimal sac | 1 (6.3) |
| Neurogenic | 15 (13.6) |
| Schwannoma | 9 (60.0) |
| Solitary neurofibroma | 4 (26.7) |
| Orbital meningioma | 2 (13.3) |
| Structural | 11 (10.0) |
| Dermoid cyst | 5 (45.5) |
| Hematic cyst | 5 (45.5) |
| Mucocele | 1 (9.1) |
| Soft tissue tumors | 9 (8.2) |
| SFT | 4 (44.5) |
| Leiomyosarcoma | 2 (22.2) |
| Liposarcoma | 2 (22.2) |
| RB-related sarcoma (MFH) | 1 (11.1) |
| Metastatic | 3 (2.7) |
| Breast carcinoma | 2 (66.7) |
| Cutaneous melanoma | 1 (33.3) |
| Others | 3 (2.7) |
MZBCL, Marginal zone B-cell lymphoma; DLBCL, Diffuse large B-cell lymphoma; BRLH, benign reactive lymphoid hyperplasia; NOS, not otherwise specified; AVM, Arteriovenous malformation; SCC, squamous cell carcinoma; SGC, sebaceous gland carcinoma; SFT, solitary fibrous tumor; Rb, retinoblastoma; MFH, malignant fibrous histiocytoma.