Nationwide epidemiologic study of osteochondroma in Japan: Analysis of 4843 cases from the bone and soft tissue tumor registry

Highlights • This study provides the largest nationwide epidemiologic data on osteochondroma in Japan.• Multiple osteochondroma presents earlier and shows symmetric long-bone involvement.• Solitary osteochondroma demonstrates a broader anatomical distribution than MO.• Surgical intervention is performed more frequently in solitary than multiple lesions.