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目的 探讨纤维组织源骨肿瘤的影像学特征。方法 分析经病理证实的纤维组织源骨肿瘤 3 1例 ,所有病例均做X线平片检查 ,6例同时做CT检查。结果 非骨化性纤维瘤 (NOF) 14例 ,多见于长骨 ,呈偏心性或中心性囊状膨胀性破坏区 ,周围厚薄不均的硬化带环绕 ,病灶内可有骨嵴。骨化性纤维瘤 (OF) 10例 ,圆形或椭圆形膨胀性改变 ,依据病变骨化程度不同可呈高密度或毛玻璃样变、囊状及混合密度 ,境界清楚 ,周围可硬化 ,颌面部多见且常有局部畸形。骨韧带样纤维瘤 (DF) 1例 ,股骨下段偏外侧的斑片状骨质破坏 ,抵达骨性关节面 ,境界不清 ,软组织略肿胀。骨纤维肉瘤 (FS) 6例 ,长骨多见 ,虫蚀状或大片溶骨性破坏伴软组织肿块 ,少数有骨膜反应及钙化。 18例正确诊断 ,正确率 58.0 6% ,未定性 6例 ,误诊 7例。结论 大多数NOF和OF有特征性表现 ,术前能明确诊断 ;DF症状较轻但呈侵袭性生长 ,易误诊 ;FS的类型和分化程度不同表现差异较大 ,多需与其它疾病鉴别
Objective To investigate the imaging features of fibrous tissue-derived bone tumors. Methods Thirty-one cases of pathologically confirmed fibrous tissue-derived bone tumors were analyzed. All cases were examined by X-ray and CT scan was performed in 6 cases. Results 14 cases of non-ossifying fibroma (NOF) were found in the long bones. They were eccentric or central cystic dilapidation. Around the uneven thickness of the sclerosis zone, bone crest could be found in the lesion. Osseous fibroids (OF) in 10 cases, round or oval swelling change, depending on the degree of ossification of the lesion may be high density or ground glass-like changes, cystic and mixed density, the state clearly around the hardenable, maxillofacial More common and often local deformities. 1 case of osteophytoid fibroid tumor (DF), the lateral femoral lower part of the patchy bone destruction, arrived at the bony articular surface, the state is not clear, slightly swollen soft tissue. Osteofibrosarcoma (FS) in 6 cases, more common long bones, worm-eaten or large osteolytic destruction with soft tissue mass, a small number of periosteal reaction and calcification. 18 cases of correct diagnosis, the correct rate of 58.0 6%, 6 cases of unidentified, misdiagnosed in 7 cases. Conclusions Most of the NOF and OF have characteristic manifestations, which can be diagnosed preoperatively. The symptoms of DF are mild but invasive, and are easily misdiagnosed. The types and differentiation of FS differ greatly in their manifestations and need to be distinguished from other diseases