May Be Caused by

 Common

Aneurysmal bone cyst

Enchondroma

Ewing sarcoma

Hemangioma

Lymphangioma

Metastatic leukemia

Metastatic neuroblastoma

Osteosarcoma

Rhabdomyosarcoma

 Uncommon

Askin tumor

Chondroblastoma

Chondrosarcoma

Desmoid

Hamartoma

Lymphoma

Mesenchymal hamartoma

Metastatic Ewing sarcoma

Metastatic medulloblastoma

Metastatic osteosarcoma

Metastatic retinoblastoma

Metastatic rhabdomyosarcoma

Metastatic Wilms tumor

Neurofibroma

Osteoblastoma

Osteochondroma

Pleuropulmonary blastoma

Primitive neuroectodermal tumor

Venous malformation