Aneurysmal Bone Cyst

Question 1

Aneurysmal Bone Cyst description

Answer 1

YOUNG (5-20 yo)painful scoliosis, blood filled cavity

Question 2

Aneurysmal Bone Cyst pain?

Answer 2

Pain => rapid, acute onset; path fx common

Question 3

Aneurysmal Bone Cyst location

Answer 3

MC benign tumor of clavicle; tubular long bones (80%), flat (occiput) & short bones (20%)

Question 4

Aneurysmal Bone Cyst plain film

Answer 4

Expansile, lytic, eccentric, bubbly, “inflated spine, blown-out, finger balloon sign” Post arch of spine.

Question 5

Aneurysmal Bone Cyst ddx

Answer 5

Only benign tumor to cross growth plate. DDX osteoblastoma, osteoid osteoma

Question 6

Aneurysmal Bone Cyst malignant/refer?

Answer 6

YES

CT/MRI detect fluid