Osteoid osteoma and osteoblastoma of the talus

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Abstract
Forty patients with osteoid osteoma or osteoblastoma of the talus are presented. Clinical and radiographic findings, histologic features, and therapy of these lesions are discussed. The body of the talus was involved in two patients, all other lesions being located in the neck of the bone. Subperiosteal lesions accounted for 75% of cases, and medullary lesions for 25%. Thirty of the 40 lesions were paraarticular. Five radiographic appearances in the talus are discussed: subperiosteal target lesions of the neck (54%); medullary lesions of the neck (20%); subperiosteal radiolucent lesions of the neck (13%); medullary lesions of the body (5%); and exostotic osteoid osteoma of the talar neck (3%).

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