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软骨肉瘤的影像学表现分析李肇兴张孙一雄【摘要】目的总结软骨肉瘤(chondr os ar com a)的影像学异常征象和影像学特征,提高软骨肉瘤的诊断水平和认识程度。
方法回顾性分析经临床手术病理证实的38例软骨肉瘤的影像学表现。
所有患者均行X线平片检查,其中行C T检查者20例,行M R I检查者20例,行N M检查者10例。
结果X线平片显示病灶内有钙化者30例, C T检查者均可见不同程度的骨质破坏和大小不一的钙化影,其中伴有软组织肿块者25例,可见骨膜反应者3例。
20例行M R I检查者显示髓腔受累范围均比C T显示的范围大且清晰,肿瘤实质在T1W I上呈等、低信号, T2W I上根据恶性高低而分别表现为不均匀或均匀高信号,增强后大部分病灶呈不均匀、分割样强化。
结论不同分型的软骨肉瘤的影像学表现具有不同影像学特征,同时也具有一定共性,结合不同影像学检查结果可提高本病的诊断水平。
【关键词】软骨肉瘤;X线;磁共振成像;病理【A bst r act】O bj ect i ve To summarize the abnormal imaging signs and imaging features of chondrosarcoma so as to improve the diagnostic level and understanding extent of chondrosarcoma.M et hods The imaging findings of38cases of chondrosarcoma confirmed by clinical operation and pathology were retrospectively analyzed.All patients received plain X-ray examination,among which,CT examination was performed in20cases,MRI examination in20cases, and NM examination in10cases.R esul t s X-ray plain film showed calcification in the lesion in30cases.CT exami-nees showed different degrees of bone destruction and calcification of different sizes,among which there were25cas-es with soft tissue mass and3cases with periosteum reaction.All the20patients underwent MRI examination showed a larger and clearer range of medullary cavity involvement than that shown by CT.The tumor parenchyma showed isointense and hypointense on T1WI,while the tumor parenchyma showed heterogeneous or homogeneous hyperintense on T2WI according to the level of malignancy.Most of the lesions showed heterogeneous and segmented enforcement after enhancement.C oncl usi on The imaging manifestations of different types of chondrosarcoma have different imag-ing characteristics,and also have certain bining different imaging findings can improve the diag-nostic level of this disease.【K ey w or ds】Chondrosarcoma;X-ray;Magnetic resonance imaging;Pathology软骨肉瘤(chondr osar com a)在骨恶性肿瘤中比较常见,占原发性骨与软组织肿瘤15％,仅次于骨髓瘤和骨肉瘤,好发于中青年[1]。
