摘要
目的 :分析胃间质瘤 (GST)的超声表现特点 ,探讨超声对该肿瘤的诊断价值。材料和方法 :回顾性分析了经手术病理证实的GST2 1例 ,术前均行超声检查。结果 :GST病灶多呈圆形或类圆形低回声。 2 1例GST中 ,3例良性肿块直径 <5 .0cm ,边界清 ,形态规则 ,回声均匀 ,向腔内突出 ,黏膜面光整 ;1 8例恶性GST中 1 5例肿块直径≥ 5 .0cm ,1 6例形态不规则 ,1 7例肿块内部有出血坏死 ,1 7例向胃腔外突出或腔内外同时突出 ,黏膜层不规整可有溃疡 ;肿块血供丰富 ,测及动脉血流频谱。结论 :超声检查对GST的生长特性、结构特征与周围组织关系及胃周淋巴结情况判定有价值 ,但因超声表现缺少特异性 。
Purpose: To analyze the ultrasonographic features of gastric stromal tumor (GST) and its diagnostic value. Materials and Methods: Ultrasonographic findings in 21 cases with pathologically proved GST were retrospectively analyzed. Results: Of 21 GST, the benign lesions(n=3), arising from the gastric wall, were less than 5 cm in size, well circumscribed and sharply demarcated from the adjacent structures. The malignant lesions(n=18) were ill defined, most of them bigger than 5 cm with hemorrhage and necrosis inside, and growing in both intramural and extramural direction with irregular mucous surface and central ulceration. Rich blood flow signal and arterial flow spectrum was detected in the tumors. Conclusion: Ultrasonography is of value in assessing the growing pattern of GST, its relationship with neighboring tissue, and the perigastric lymphadenophathy. But pathological examination is still needed for the disease.
出处
《中国医学影像学杂志》
CSCD
2004年第6期410-413,共4页
Chinese Journal of Medical Imaging
