胃间质瘤的CT诊断(附11例分析)

CT diagnosis of gastric stromal tumors:a report of 11 cases

目的:分析胃间质瘤(Gastric stromal tumor,GST)的CT表现,探讨CT诊断胃间质瘤的价值。方法:回顾性分析经手术病理免疫组化证实的11例胃间质瘤的临床及影像学资料。结果:肿瘤位于胃体6例,胃底5例;7例为恶性,4例为良性;肿块直径<5 cm 5例,5～10 cm 5例,>10 cm 1例;向腔内生长4例,向腔外生长6例,向腔内外生长1例;CT平扫为软组织肿块,增强后肿块轻中度至明显强化或其内有不增强的坏死液化区。结论:CT检查对胃间质瘤诊断有较高价值,并有助于肿瘤的定位、定性诊断。

Objective To analyze the CT features of gastric stromal tumors（GST） and its diagnostic va lue.Method The clinical a n d imaging data of 11 cases with GST proved by pathology were reviewed retrospect ively.Results Tumors loca t ed in the gastric body in 6 cases,located in the gastric fundus in 5 cases.Sev e n cases were malignant and 4 cases were benign.The diameter of tumor 5 cm in 5 cases,5～10 cm in 5 cases,10 cm in 1 case.The lesions included endo-luminal g r owth in 4 cases,extra-luminal growth in 6 cases and duplex growth in 1 case.Pl a in CT showed soft tissue mass,after enhanced,the masses were strengthened mode rate to obviously or necrosis and the liquefied parts were not enhanced. Conclusion CT for GST has signifi cant diagnostic value in characterization and location.