肾上腺神经鞘瘤的CT诊断

CT diagnosis of adrenal schwannoma

目的:通过对肾上腺神经鞘瘤的病理及CT表现分析,结合复习国内外文献,提高对肾上腺神经鞘瘤影像诊断的能力。方法:回顾本院所遇经手术病理证实的4例肾上腺神经鞘瘤CT特征和病理学表现。结果:3例肿块位于右肾上极前与下腔静脉后间隙中,在平扫上呈圆形或卵圆形低密度肿块,其边缘清晰锐利。肿瘤内部密度不均,1例内见点状钙化灶,增强扫描肿块呈轻度不均匀强化。1例位于左侧肾上腺外侧支,呈圆形略分叶状的均匀等密度结节,增强后肿块表现为中度强化。结论:CT对肾上腺神经鞘瘤的定位,及肿瘤的诊断与鉴别诊断有一定的价值。

Objective： To explore the pathology and CT features of the schwannoma of adrenal gland combined with literatures were analyzed, so as to improve the diagnostic accuracy of adrenal schwannoma. Methods：The CT features and pathology data of 4 patients with operatively and pathologically proved schwannoma of adrenal gland were analyzed and reviewed. Results： In file three cases, lesions located at right adrenal gland. They are round or ovoid, smoothly marginated mass that are lower density on plain CT. These masses have nonhomogenized density and calcification in a case. They show nfild nonhomogeneous enhancement after contrast-enhanced scans. The mass located at a limb of left adrenal gland in a patient. It appears as a Iobulated round nodule with isointensity and is demonstrated medium enhancement. Conclusion： Spiral CT is helpful to the location of neoplasms, as well as diagnosis and differential diagnosis of schwannoma of adrenal gland.