Table 2: Recurrence rate of GCTs according to treatment, age, and site of origin.

Variable Recurrence No. (frequency) No recurrence No. (frequency) Unknown No. (frequency) Total Length of Follow-up
Treatment
Total resection
Subtotal resection
Other treatment*
Biopsy and observation
3 (10%)
3 (3.7%)
2 (100%)
0 (0%)
19 (63.3%)
2 (2.5%)
0 (0%)
No growth 1 (100%)
8 (26.7%)
3 (3.7%)
0 (0%)
0 (0%)
30
8
2
1
0-6 y
0-2 y
2 y
2 y
Age, y
< 35
≥ 35
1/6
5/6
4/22
18/22
3/11
8/11
39
39
Site of origin
Inferior orbit
Inferomedial orbit
Inferolateral orbit
Superior orbit
Medial orbit
Retrobulbar
Orbital apex
Inferior, medial, lateral orbit
Superiolateral orbit
Orbital apex
Orbital fissure
2 (18%)
1 (50%)
0 (0%)
1 (16.7%)
1 (25%)
0 (0%)
0 (0%)
0 (0%)
0 (0%)
0 (0%)
1 (50%)
5 (45.5%)
1 (50%)
1 (33.3%)
4 (66.7%)
3 (75%)
3 (100%)
1 (100%)
1 (100%)
1 (100%)
1 (100%)
1 (100%)
0/2
7 (63.6%)
0 (0%)
2 (66.7%)
1 (16.7%)
0 (0%)
0 (0%)
0 (0%)
0 (0%)
0 (0%)
0 (0%)
1 (50%)
14
2
3
6
4
3
1
1
1
1
1
2
unknown-6 y
unknown-1 y
unknown-4y
unknown-2y
6m-8y
2-3y
2y
6m
15m
2y
2y
2y 9m
Total 6 22 11 39

* Radiotherapy and chemotherapy in combination with surgical treatment.