Osteoid osteoma

Osteoid osteoma은 benign bone tumor로 a small radiolucent nidus가 특징인 종양이다.

임상 양상

• 10대
• Pain: quickly resolves(within 20 to 25 minutes) with NSAID

Image features

• small, round lucency nidus(<1~1.5 cm in diameter) with a sclerotic margin

감별 질환

• stress fracture
• subacute/chronic osteomyelitis with intracortical abscess
• osteoblastoma