Osteoid Osteoma

– small circumscribed osteoblastic lesion
– presents most frequently in males in 2nd decade
– proximal femur affected in 30%

Signs & Symptoms:
– dull pain that is worse at night
– relieved by ASA
– may cause localized swelling or limp depending on location

– lucent ‘nidus’ surrounded by dense reactive bone
– usu

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