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[目的]探讨骨盆软骨肉瘤的影像学特点,提高影像诊断的准确性。[方法]回顾分析17例经病理证实骨盆软骨肉瘤的影像学资料,其中15例行DR(digital radiography)拍片,14例行CT检查,12例患者行MRI(magneticresonance imaging)检查。[结果]15例DR检查中13例DR片清晰显示不规则骨质破坏,11例DR片清晰显示病灶内有大小不一钙化。14例CT表现骨质呈溶骨性或膨胀性破坏,周围不均匀密度软组织肿块,可见不规则钙化或骨化。12例MRI表现为骨质破坏,周围软组织肿块,边界不清;T1WI呈低信号,T2WI呈高、低混杂信号,脂肪抑制序列T2WI呈混杂高信号,增强扫描呈周边强化或分隔样强化。[结论]软骨肉瘤影像学特征表现为骨质不规则破坏,伴软组织肿块内钙化。DR、CT、MRI三者相结合有助于骨盆软骨肉瘤的诊断。
[Objective] To investigate the imaging features of pelvic chondrosarcoma and improve the accuracy of imaging diagnosis. [Methods] The imaging data of 17 cases of pelvic chondrosarcoma confirmed by pathology were retrospectively analyzed. Among them, 15 cases were examined by digital radiography (DR), 14 cases by CT scan and 12 cases by MRI (magneticresonance imaging). [Results] In the 15 cases of DR examination, 13 cases of DR clearly showed irregular bone destruction, and 11 cases of DR clearly showed lesions of different sizes and calcifications. 14 cases of CT showed osteolytic or expansive destruction of bone around the uneven density of soft tissue mass, showing irregular calcification or ossification. T1WI showed low signal, T2WI showed high and low confounding signals, fat suppression sequence T2WI was mixed high signal, enhanced scan was peripheral enhancement or compartment-like enhancement. [Conclusion] The imaging features of chondrosarcoma are irregular bone destruction with calcification in soft tissue mass. The combination of DR, CT and MRI is helpful for the diagnosis of pelvic chondrosarcoma.