The following are the tumor mimics:
1. Cortical desmoid
2. Brodie abscess
3. Synovial herniation pit
4. Pseudocyst
5. Enostosis (bone island)
6. Intraosseous ganglion cyst
7. Fibrous dysplasia
8. Stress fracture
9. Avulsion fracture (healing stage)
10. Bone infarct
11. Myositis ossificans
12. Brown tumor
13. Subchondral cyst.
14. CROM - chronic recurrent osteomyelitis
15. SAPHO
Reference:
Gould FC et al. Bone Tumor Mimics: Avoiding Misdiagnosis. Current Problems in Diagnostic Radiology
Volume 36, Issue 3, May-June 2007, Pages 124-141