四肢长骨内生软骨瘤的影像学诊断及治疗观察

目的 探讨四肢长骨内生软骨瘤的影像学特点和治疗方法.方法 回顾性分析1998年2月-2010年2月本院诊治四肢长骨内生软骨瘤患者10例,均经手术病理证实,X线平片和CT资料完整,6例有完整的MRI资料.结果 10例均单发,X线平片、CT图像均表现为骨干内囊状骨质透亮区,伴钙化或骨化影.所行MRI的6例病灶均呈T1WI低信号、T2WI高信号为主的混杂信号改变.X线平片、CT、MRI图像均未见骨膜反应和软组织肿块影.结合X线平片、CT和(或)MRI,所有病例均获得正确诊断.6例行单纯刮除病灶植骨术,4例行病灶清除植骨加内固定术.术后随访1年以上,均获骨性愈合,无1例复发及转移.结论 对四肢长骨内生软骨瘤,综合X线平片、CT和(或)MRI多能作出正确诊断,一旦确诊,应尽早手术治疗,预后良好.

Imaging diagnosis and treatment observation of enchondroma in long tubular bones of extremities

Objective To probe the imaging features and treatment method for enchondroma in long tubular bones of extremities.Methods From February 1998 to February 2010,retrospective study was done in 10 cases of enchondroma confirmed by pathology.Plain radiography and CT were performed in all cases.The complete MRI were performed in 6 cases.Results All cases were solitary enchondroma.A capsular central lucency in the diaphysis with calcifications inside the lesions could be showed in all cases by plain radiography and CT.MRI showed low signal intensity on T1WI and mixed mainly high signal intensity on T2WI in 6 cases.There were no periosteal reaction and soft tissue density on all imaging findings.The accurate diagnosis of all cases had been made by the imaging findings.The 6 cases were cured by curettage and freezed allogenous cancellous bone grafting or autografts. The other cases adopted internal fixation else.All the patients were followed-up for more than 1 year until bones completely healed. There were no recurrence or metastasis.Conclusion The accurate diagnosis of enchondroma can be made by the plain radiography, CT and MRI.Operation should be performed as early as possible when diagnosis is confirmed.All cases have a good prognosis.