Osteoblastoma Flashcards
1
Q
Osteoblastoma description
A
YOUNG (70% < 20 yo) 50% present painful scoliosis
2
Q
Osteoblastoma pain?
A
Severe night pain, not relieved by aspirin, stiffness/↓ROM
3
Q
Osteoblastoma location
A
Neural arch (40%), spine, femur, foot/ankle
4
Q
Osteoblastoma plain film
A
Lytic, expansile in spine; variable sclerosis in other locations; in extremities, lucent nidus > 2cm
5
Q
Osteoblastoma ddx
A
Osteoid osteoma; same histology as ABC. OB is not sclerotic in the hip capsule.
6
Q
Osteoblastoma malignant/ refer
A
YES
Bone scan = +