胃神经鞘瘤的CT表现与病理对照研究

Gastric schwanomas: CT features and correlation with pathology

目的:探讨胃神经鞘瘤的CT表现及病理学特点。方法:回顾性分析10例经手术和病理证实的胃神经鞘瘤CT资料,并与病理所见相对照。结果:肿瘤均为单发病灶,6例发生于胃体部,2例发生于胃窦,2例发生于胃底,肿块大小不一,但以<3 cm为主,其内密度均匀,呈等或稍低密度,1例密度略不均匀,均未见明确囊变、坏死区,2例可见溃疡面形成,增强扫描静脉期呈中度强化,4例行延迟期扫描,强化程度未见下降。结论:胃神经鞘瘤的CT表现具有一定的特点,CT检查有助于胃神经鞘瘤的定位、定性以及观察肿瘤与周围组织结构的关系,但具体诊断仍需结合病理表现。

Objective： To investigate the CT features and pathology of gastric schwanomas. Methods： The CT imaging of 10 cases of gastric schwanomas proven by surgery and pathology were retrospectively analyzed and correlated with pathology. Results： All of the 10 cases had solitary tumor in stomach, with 6 in the body, 2 in the antrum and 2 in the bottom. All the lesions varied in size, but mainly less than 3 cm. Most of the lesions were of homogeneous iso-density or slightly low density. One case had slightly inhomogeneous attenuation, without any necrosis or cysts. Two cases had ulcer surface. After enhancement, all of the leisons had moderate enhancement in venous phase. Conclusion： CT features of gastric schwanomas had some characteristics and are helpful for the characterization and location of the tumor as well as assessing the relationship of the tumor and surrounding structures. Nevertheless, the concrete diagnosis needs pathology.