Osteoblastoma Flashcards

1
Q

Osteoblastoma description

A

YOUNG (70% < 20 yo) 50% present painful scoliosis

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2
Q

Osteoblastoma pain?

A

Severe night pain, not relieved by aspirin, stiffness/↓ROM

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3
Q

Osteoblastoma location

A

Neural arch (40%), spine, femur, foot/ankle

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4
Q

Osteoblastoma plain film

A

Lytic, expansile in spine; variable sclerosis in other locations; in extremities, lucent nidus > 2cm

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5
Q

Osteoblastoma ddx

A

Osteoid osteoma; same histology as ABC. OB is not sclerotic in the hip capsule.

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6
Q

Osteoblastoma malignant/ refer

A

YES

Bone scan = +

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