胃神经鞘瘤的MSCT表现

目的：探索胃神经鞘瘤(GS)的 MSCT特征。方法纳入16例手术病理证实的 GS患者,回顾性分析患者的 MSCT 资料。结果16例患者均为单发性 GS,病灶位于胃窦、胃体以及胃底,分别为5例、10例和1例。MSCT 资料分析显示瘤体形态,13例呈圆形或类圆形,3例形态不规则略呈分叶状生长。生长方式分析提示13例瘤体腔内外双向生长,1例腔内生长,1例腔外生长,1例由于胃十二指肠套叠无法判断生长方式。平扫发现14例呈均匀等密度,1例少许坏死,1例可见点状钙化,增强后呈渐进性均匀强化。结论 GS多位于胃体或胃窦,呈圆形或类圆形,同时向腔内外生长,坏死与钙化少见,增强扫描呈渐进性均匀强化,无周围侵犯与转移。

MSCT findings of gastric schwannomas

Objective To explore the MSCT characteristics of gastric schwannoma (GS).Methods 1 6 patients with pathologically verified GS were included in our study.The MSCT images were analysed retrospectively.Results 1 6 participants were determined with solitary nodule,which located in gastric antrum,body and fundus,respectively with 5 cases,10 cases and 1 case.13 of them showed morphologically as round or ovoid shape,while 3 of them grew irregularly lobulated lesion.For their growth pattern,1 3 tumors presented as bilateral growth,1 lesion appeared intra-cavitary growth,1 grew outside the cavity fields.However,1 case was hard to confirm the growth pattern due to the gastroduodenal intussusception.14 tumors appeared uniform density,1 showed a little necrosis and 1 had dotted calcification,all the lesions were emerged as progressive enhancement with inhomogeneous feature.Conclusion GS mostly located in gastric body or antrum,with round or ovoid appearence,well-defined border,and bilateral growth pattern,necro-sis and calcification are rare,enhanced progressively with homogeneous feature,with no surrounding invasion and metastasis.