摘要
目的探讨腹膜后孤立性纤维瘤(SFT)的CT特点,并分析其误诊原因。方法回顾性分析4例经手术病理证实的SFT患者的临床及CT资料,4例行CT平扫及多期增强扫描。结果 4例SFT中,肾脏2例,肾旁前间隙1例,肾上腺1例,均呈单发类圆形肿块。CT平扫2例呈较均匀等密度,内见小灶性低密度区;1例呈均匀等密度;1例呈不均匀等密度,伴片状低密度区;增强扫描强化程度呈多样化,强化方式均呈持续延迟"慢出型",且4例肿块内或表面见蔓状紊乱供血血管。术前均误诊。结论腹膜后SFT的CT增强表现具有一定的特征性,但仍需与腹膜后其他富血供肿瘤相鉴别。
Objective To investigate the CT findings of retroperitoneal solitary fibrous tumor（SFT）,and to analyze the reasons of misdiagnosis. Methods A retrospective study was conducted on the CT findings of four cases of SFT proved pathologically,all of the patients underwent CT plain scan and multi-phase scan. Results The SFTs originated from different parts of retroperitoneal,including 2 in the kidney,1 in the anterior pararenal space,and 1 in the adrenal gland,all the 4 cases presented with solitary masses with well-defined round margins. On plain CT scans,two appeared relatively homogeneous soft tissue density with focal areas of low-density,one showed homogeneous soft tissue density,and one showed heterogeneous density with patchy necrosis or cystic area. On enhanced CT scans,enhancement degree are diversified,the mode of enhancement was delayed ＂slow-out＂. And circuitous vessels within the tumors could be detected in 4 cases. All patients were misdiagnosed as other diseases before operation. Conclusion The enhanced CT findings of retroperitoneal SFT have some characteristics,but they still need to be differentiated from other retroperitoneal rich-blood tumors.
出处
《江西医药》
CAS
2017年第11期1111-1113,1116,共4页
Jiangxi Medical Journal
基金
2014年江西省教育厅项目基金
编号12004093
