May Be Caused by

Aneurysmal bone cyst

Bone sarcoma

Brucellosis

Chordoma

Epidural abscess

Epidural granuloma

Extramedullary hematopoiesis

Fracture fragment

Ganglioneuroma

Giant cell tumor

Hemangioma

Hydatid disease

Langerhans cell histiocytosis

Lymphoma

Multiple myeloma

Neuroblastoma

Neurofibroma

Osseous metastasis with epidural soft tissue extension

Osteoblastoma

Osteochondroma

Osteomyelitis with adjacent cellulitis

Osteophyte

Osteoporosis with fracture and granulation tissue

Paget disease of bone

Pyogenic abscess

Spinal stenosis

Spondylolisthesis

Spondylosis

Tuberculosis