May Be Caused by

Aneurysmal bone cyst

Bone cyst

Chondromyxoid fibroma

Chondrosarcoma

Congenital syphilis

Cortical desmoid

Desmoplastic fibroma

Enchondroma

Exostosis

Fibrosarcoma

Fibrous cortical defect

Giant cell tumor

Leukemia

Lipoma

Malignant fibrous histiocytoma

Metastasis

Neuroblastoma

Nonossifying fibroma

Osteoblastoma

Osteochondroma

Osteomyelitis

Osteosarcoma

Parosteal sarcoma

Periosteal chondroma

Periosteal desmoid

Periosteal fibroma

Smallpox