骨软骨瘤的显微镜显示左边为良性软骨帽，右边为骨皮质。这种骨生长虽为良性，但有时会引起疼痛与刺激则需要外科切除。
The microscopic appearance of an osteochondroma displays the benign cartilagenous cap at the left and the bony cortex at the right. This bone growth, though benign, can sometimes cause problems of pain and irritation that leads to removal surgically.