“ Common benign bone lesion composed of a central core of vascular osteoid tissue and peripheral sclerosis. It c lassically presents with pa...
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Common benign bone lesion composed of a central core of vascular osteoid tissue and peripheral sclerosis. It classically presents with pain that is worse at night and effectively relieved by salicylates (i.e. aspirin). More common in males (three-fold) and between 10 and 30 years of age. Responds well to thermal ablation.
PLAIN FILM
• Small lucent lesion (less than1.5 cm) surrounded by reactive sclerosis, most commonly found in the bone cortex.
• Femoral neck is the most common location (also typically tibia, humerus, hands, feet and spine).
• The posterior elements (e.g. pedicle) of the spine are affected more commonly, and it causes a painful scoliosis.
CT
• Well-demarcated, low-attenuation lesion surrounded by sclerosis
MRI
• Prompt arterial enhancement
• Intermediate signal intensity nidus with marked enhancement post-contrast
• ‘Double density’ sign: focus of very high tracer uptake surrounded by a diffuse area of more modest tracer uptake.
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