股骨近端骨样骨瘤误诊原因分析

目的：分析骨样骨瘤的症状、体征及X线特点,减少该病的误诊误治率。方法：回顾分析经手术病理证实的骨样骨瘤9例。男7例,女2例。归纳所有病例的症状、体征、X线及CT检查特点。结果：全部9例患者均有患侧髋关节持续疼痛夜间加重的特点,及由此所致的跛行和患侧大腿肌肉萎缩的体征。骨样骨瘤的影像学表现为一圆形或卵圆形的透亮区,直径〈2cm,其周围有不同程度的骨质硬化。9例X线平片仅5例发现不规则密度减低区,9例CT均清楚显示病灶瘤巢;1例MRI也观察到类似瘤巢的改变。4例同位素检查均表现为病变区核素浓聚现象。结论：疼痛是骨样骨瘤的主要症状,瘤巢是确诊骨样骨瘤的关键,CT是发现瘤巢的最佳方法。误诊原因是缺乏对该病的认识。

Analysis of misdiagnosis of osteoid osteoma in the superior femur

Objective:To reduce the misdiagnosis rate of osteoid osteoma by analyzing its symptoms,signs,and X-ray findings.Methods:Nine cases of osteoid osteoma(7 males and 2 females) confirmed by histopathology were chosen.All patients underwent plain X-ray examination and CT scanning,and one of them had MRI.Results:All cases had persistent night pain in the hip joints,which caused symptoms of limp and muscular atrophy in the affected leg.The osteoid osteoma was found to have a circular or oval radiolucency(nidus) wh...