Table 1.
Patient characteristics
| Classification | Diagnosis | Number | Location H/N/T/S | Mean age (years; range) | Number of fractures at diagnosis | Number of incidental detections | Pain at presentation |
|---|---|---|---|---|---|---|---|
| Nonaggressive benign (n = 48) |
Fibrous dysplasia | 23 | 1/13/4/5 | 41 (14–70) | 0 | 11 | 14 |
| Intraosseous lipoma | 11 | 1/6/2/2 | 45 (25–50) | 0 | 7 | 2 | |
| Simple bone cyst | 9 | 0/3/2/4 | 30 (13–54) | 1 | 1 | 7 | |
| Intraosseous hemangioma | 2 | 0/2/0/0 | 27 (23–32) | 0 | 2 | 0 | |
| Osteoma | 2 | 0/0/2/0 | 54 (53–55) | 0 | 1 | 2 | |
| Osteochondroma | 1 | 0/0/1/0 | 26 | 0 | 1 | 1 | |
| Aggressive benign (n = 6) |
Chondroblastoma | 3 | 1/0/2/0 | 18 (14–21) | 0 | 0 | 3 |
| Giant cell tumor | 2 | 0/0/2/0 | 22 (19–24) | 1 | 0 | 2 | |
| Benign fibrous histiocytoma | 1 | 0/1/0/0 | 69 | 0 | 0 | 1 | |
| Total | 54 | 3/25/15/11 | 38 (13–70) | 2 (4%) | 23 (43%) | 32 (59%) |
H = head; N = neck; T = trochanteric; S = subtrochanteric.