肠系膜胃肠道外间质瘤的增强CT特征
目的探讨肠系膜胃肠道外间质瘤（EGIST）的增强CT特征,以提高对该肿瘤的认识及诊断。方法回顾性分析经手术及病理证实的15例肠系膜EGIST患者的增强CT图像及临床资料。结果 15例肠系膜EGIST中,高度危险性11例,中度危险性4例,其中肝转移1例,腹腔种植转移1例。2例占据右中下腹盆腔,3例位于十二指肠降部周围,4例位于肠系膜根部,4例位于左下腹小肠系膜周围,2例位于盆腔右侧。肿瘤的最大直径为5.6-22.0 cm,平均约11.5 cm。类圆形6例,边界清晰;不规则、分叶状9例,边界模糊。15例密度不均,肿瘤内可见不同程度的囊变、坏死区,其中9例囊变、坏死范围超过50%;2例伴有钙化,1例...
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| Published in | 影像诊断与介入放射学 Vol. 26; no. 4; pp. 277 - 281 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
上海交通大学医学院附属第九人民医院放射科,上海,201999
2017
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1005-8001 |
| DOI | 10.3969/j.issn.1005-8001.2017.04.003 |
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| Abstract | 目的探讨肠系膜胃肠道外间质瘤（EGIST）的增强CT特征,以提高对该肿瘤的认识及诊断。方法回顾性分析经手术及病理证实的15例肠系膜EGIST患者的增强CT图像及临床资料。结果 15例肠系膜EGIST中,高度危险性11例,中度危险性4例,其中肝转移1例,腹腔种植转移1例。2例占据右中下腹盆腔,3例位于十二指肠降部周围,4例位于肠系膜根部,4例位于左下腹小肠系膜周围,2例位于盆腔右侧。肿瘤的最大直径为5.6-22.0 cm,平均约11.5 cm。类圆形6例,边界清晰;不规则、分叶状9例,边界模糊。15例密度不均,肿瘤内可见不同程度的囊变、坏死区,其中9例囊变、坏死范围超过50%;2例伴有钙化,1例伴有出血;增强扫描肿瘤实质部分轻至中度渐进性强化,动脉期增强幅度约22-32HU,静脉期增强幅度约38-40 HU,肿瘤囊变、坏死部分无强化。6例肿瘤实质内可见增粗扭曲条状、簇状肿瘤血管影,经MIP显示肿瘤均由肠系膜上动脉分支血管供血。结论肠系膜EGIST的增强CT图像有一定的特征性,特别是血管MIP成像对明确肿瘤供血来源及发病部位的诊断具有重要价值,有助于对该肿瘤的正确诊断以及术前评估。 |
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| AbstractList | 目的探讨肠系膜胃肠道外间质瘤（EGIST）的增强CT特征,以提高对该肿瘤的认识及诊断。方法回顾性分析经手术及病理证实的15例肠系膜EGIST患者的增强CT图像及临床资料。结果 15例肠系膜EGIST中,高度危险性11例,中度危险性4例,其中肝转移1例,腹腔种植转移1例。2例占据右中下腹盆腔,3例位于十二指肠降部周围,4例位于肠系膜根部,4例位于左下腹小肠系膜周围,2例位于盆腔右侧。肿瘤的最大直径为5.6-22.0 cm,平均约11.5 cm。类圆形6例,边界清晰;不规则、分叶状9例,边界模糊。15例密度不均,肿瘤内可见不同程度的囊变、坏死区,其中9例囊变、坏死范围超过50%;2例伴有钙化,1例伴有出血;增强扫描肿瘤实质部分轻至中度渐进性强化,动脉期增强幅度约22-32HU,静脉期增强幅度约38-40 HU,肿瘤囊变、坏死部分无强化。6例肿瘤实质内可见增粗扭曲条状、簇状肿瘤血管影,经MIP显示肿瘤均由肠系膜上动脉分支血管供血。结论肠系膜EGIST的增强CT图像有一定的特征性,特别是血管MIP成像对明确肿瘤供血来源及发病部位的诊断具有重要价值,有助于对该肿瘤的正确诊断以及术前评估。 目的 探讨肠系膜胃肠道外间质瘤(EGIST)的增强CT特征,以提高对该肿瘤的认识及诊断.方法 回顾性分析经手术及病理证实的15例肠系膜EGIST患者的增强CT图像及临床资料.结果 15例肠系膜EGIST中,高度危险性11例,中度危险性4例,其中肝转移1例,腹腔种植转移1例.2例占据右中下腹盆腔,3例位于十二指肠降部周围,4例位于肠系膜根部,4例位于左下腹小肠系膜周围,2例位于盆腔右侧.肿瘤的最大直径为5.6～22.0 cm,平均约11.5 cm.类圆形6例,边界清晰;不规则、分叶状9例,边界模糊.15例密度不均,肿瘤内可见不同程度的囊变、坏死区,其中9例囊变、坏死范围超过50％;2例伴有钙化,1例伴有出血;增强扫描肿瘤实质部分轻至中度渐进性强化,动脉期增强幅度约22～32 HU,静脉期增强幅度约38～40 HU,肿瘤囊变、坏死部分无强化.6例肿瘤实质内可见增粗扭曲条状、簇状肿瘤血管影,经MIP显示肿瘤均由肠系膜上动脉分支血管供血.结论 肠系膜EGIST的增强CT图像有一定的特征性,特别是血管MIP成像对明确肿瘤供血来源及发病部位的诊断具有重要价值,有助于对该肿瘤的正确诊断以及术前评估. |
| Abstract_FL | Objective To review the CT features of extragastrointestinal stromal tumor (EGIST) in the mesentery. Methods The clinical records and CT of 15 patients with histologically confirmed EGIST in the mesentery were retrospectively studied. Results Of the 11 high-risk EGISTs and 4 intermediate-risk EGISTs, metastasis was observed in the liver (1), abdominal cavity (1), right lower abdomen and pelvis (2), around the descending duodenum (3), mesentery root (4), left lower abdominal mesentery (4), or right pelvis (2). The mean tumor size was 11.5 cm (5.6-22.0 cm). The tumor was round with well-defined boundary (6) or irregular with poor-de-fined boundary (9). Unenhanced CT showed heterogeneous density with cystic-necrotic components in all 15 masses with calcification (2) or hemorrhage (1). The solid components showed progressive mild to moderate enhancement with CT values of 22-32 HU in the ar-terial phase and 38-40 HU in the venous phase. The cystic-necrotic components did not enhance. Maximum intensity projection (MIP) helped to clarify tumor blood supply by the superior mesenteric artery in 6 tumors with stripe-like and clustered vessels. Conclusion EGIST in the mesentery has characteristic CT features. MIP can help clarify the tumor blood supply for preoperative evaluation. |
| Author | 王灿 李雯 孙冰冰 杨春雪 陶晓峰 |
| AuthorAffiliation | 上海交通大学医学院附属第九人民医院放射科,上海201999 |
| AuthorAffiliation_xml | – name: 上海交通大学医学院附属第九人民医院放射科,上海,201999 |
| Author_FL | LI Wen TAO Xiao-feng SUN Bing-bing YANG Chun-xue WANG Can |
| Author_FL_xml | – sequence: 1 fullname: WANG Can – sequence: 2 fullname: LI Wen – sequence: 3 fullname: SUN Bing-bing – sequence: 4 fullname: YANG Chun-xue – sequence: 5 fullname: TAO Xiao-feng |
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| Keywords | 肠系膜 胃肠道外间质瘤 Extragastrointestinal stromal tumor Tomography 体层摄影术,X线计算机 Mesentery X-ray computed |
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| Notes | Objective To review the CT features of extragastrointestinal stromal tumor（EGIST） in the mesentery. Methods The clinical records and CT of 15 patients with histologically confirmed EGIST in the mesentery were retrospectively studied. Results Of the 11 high-risk EGISTs and 4 intermediate-risk EGISTs, metastasis was observed in the liver（1）, abdominal cavity（1）, right lower abdomen and pelvis（2）, around the descending duodenum（3）, mesentery root（4）, left lower abdominal mesentery（4）, or right pelvis（2）. The mean tumor size was 11.5 cm（5.6-22.0 cm）. The tumor was round with well-defined boundary（6） or irregular with poor-de-fined boundary（9）. Unenhanced CT showed heterogeneous density with cystic-necrotic components in all 15 masses with calcification（2） or hemorrhage（1）. The solid components showed progressive mild to moderate enhancement with CT values of 22-32 HU in the ar-terial phase and 38-40 HU in the venous phase. The cystic-necrotic components did not enhance. Maximum intensity projection（MIP）helped to |
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| Snippet | 目的探讨肠系膜胃肠道外间质瘤（EGIST）的增强CT特征,以提高对该肿瘤的认识及诊断。方法回顾性分析经手术及病理证实的15例肠系膜EGIST患者的增强CT图像及临床资料。结果... 目的 探讨肠系膜胃肠道外间质瘤(EGIST)的增强CT特征,以提高对该肿瘤的认识及诊断.方法 回顾性分析经手术及病理证实的15例肠系膜EGIST患者的增强CT图像及临床资料.结果... |
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| SubjectTerms | X线计算机 体层摄影术 肠系膜 胃肠道外间质瘤 |
| Title | 肠系膜胃肠道外间质瘤的增强CT特征 |
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