骨样骨瘤和骨母细胞瘤均为良性成骨性肿瘤,其组织学表现极为相像,但发病部位,放射学和临床表现不同,主要的区别为病变的大小,骨样骨瘤的生长非常有限,其直径不超过1～2cm,而骨母细胞瘤则可以很大,作者报道了2例具骨样骨瘤特征的肿瘤,在切除后复发,而显示为典型的骨母 Osteoid osteoma and osteoblastoma are all benign osteogenic tumors, their histological appearance is very similar, but the location of the disease, radiology and clinical manifestations are different, the main difference is the size of the lesion, the growth of osteoid osteoma is very Limited, its diameter does not exceed 1 ~ 2cm, while osteoblastoma can be large, the authors reported two cases of osteoid osteoma tumor characteristics, recurrence after resection, and showed a typical bone mother