骨瘤

An osteoblastoma is just a big osteoid osteoma in the vertebra.

成骨细胞瘤恰是椎骨上大骨样骨瘤。

Single cancellous osteomas, unlike exostosis, are a relatively rare lesion in the external auditory canal.

单性疏松骨瘤，不像生骨疣，是耳较病灶。