Objective To investigate the differential dia gnosis between ankylosing spondyli tis(AS)and condensing ostitis(CO)and to analyze their clinical manifesta tions and CT features.

• 目的探讨强直性脊柱炎与致密性骨炎的临床及影像学鉴别诊断。方法对38例强直性脊柱炎,21例致密性骨炎临床表现与影像检查进行回顾性分析对比。