摘要
目的探讨胃肠道间质瘤的CT表现特征。方法回顾性分析经手术和病理证实的12例胃肠道间质瘤患者的CT影像学资料,并将大体病理所见与CT表现相对照。结果肿瘤位于胃部2例,十二指肠2例,空肠4例,空回肠交界处1例,回肠1例,直肠1例,肠系膜内者1例。发生于小肠的8例中5例有便血史或便潜血阳性。12例中恶性肿瘤9例,潜在恶性1例,交界性1例,不能确定良恶性1例。12例中11例肿块CT表现为外生性肿块,多较大,其中恶性肿块最大径3～20 cm,最大径＜5 cm者1例,≥5 cm者8例。肿物密度不均匀,呈囊实性,实性部分中度强化至明显强化,肿块内伴有溃疡形成2例,最大径均＞12 cm。瘤内点状钙化灶1例。结论胃肠道间质瘤的CT表现具有一定特点,CT检查有助于胃肠道间质瘤的定位,以及观察肿瘤与周围组织结构关系情况。
Objective To investigate the specific CT findings of gastrointestinal stromal tumors （GIST）. Methods The CT imaging of 12 cases of GISTs confirmed operatively and pathologically were reviewed and analyzed. The gross pathologic findings of the tumors were compared with the manifestations of CT study. Results Two of the GIST were from the stomach, 2 from the duodenum, 4 from jejunum, and 1 from the junction of jejunum and ileum, ileum, rectum and mesenterium respectively. 5 of 8 cases with GIST from intestine had history of hemafecia or positive of fecal occult blood test. 9 of the 12 GISTs were malignant, 1 of them was potentially malignant, 1 was not sure to be malignant or benign. CT studies of 11 of the 12 tumors showed as exogenous mass of 3-20 cm,only 1 with less than 5 cm and 8 of them with over 5 cm. in the max diameter the tumors were cystic-solid with inhomogenous attenuation. The solid potion of tumors enhanced moderately to markedly after the contrast media administered. Ulcer was seen in the tumors of 2 cases, and the diameter of both of them were over 12 cm. Punctate calcification was seen in 1 GIST. Conclusion CT findings of GIST were specific to a certainty. CT study is helpful for locating the tumor and observation of the relationship of the tumor and surrounding structures.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
2006年第8期843-845,共3页
Chinese Journal of Radiology
关键词
胃肠肿瘤
体层摄影术
X线计算机
Gastrointestinal neoplasms
Tomography,X-ray computed
