May Be Caused by

 Common

Cavernous hemangioma

Hemangiopericytoma

Mesenchymal tumor

Sclerosing hemangioma

 Uncommon

Angiosarcoma

Bone metastases

Fibrous cortical defect

Fibrous dysplasia

Giant cell tumor

Gorlin syndrome

Malignant fibrous histiocytoma

Malignant peripheral nerve sheath tumor

Metastatic neuroblastoma

Metastatic prostate cancer

Nasopharyngeal angiofibroma

Nonossifying fibroma

Osteoblastoma

Reparative giant cell granuloma