osteochondroma

例句：

1. 1.He had a bone-shaped tumor on his leg that doctors couldn't remove.
   他的腿上有一个形状像骨头的肿瘤，医生无法移除。
2. 2. The doctor diagnosed the patient with an osteochondroma and recommended surgery.
   医生诊断患者患有骨软骨瘤，并建议进行手术。
3. 3. The osteochondroma was removed successfully during the operation.
   手术成功切除了该骨软骨瘤。