肾上腺节细胞神经瘤的多层螺旋CT影像特征分析

Analysis of MSCT imaging features of adrenal ganglioneuroma

目的探讨肾上腺节细胞神经瘤的多层螺旋cT（MSCT）影像特征，总结鉴别诊断要点。方法分析经手术病理证实的8例肾上腺节细胞神经瘤的MSCT表现，并结合相关文献进行探讨。结果所有肾上腺节细胞神经瘤均为单发，右侧肾上腺5例，左侧肾上腺3例，多数肿瘤密度均匀，7例密度呈软组织密度影，其中2例内可见斑点状钙化影。增强后动脉期病灶未见强化或轻度强化，门脉期及延迟期呈轻度持续性强化及线样分隔样强化、包膜强化；1例CT平扫呈水样低密度，增强各期未见强化。结论肾上腺节细胞神经瘤较为罕见，MSCT动态增强表现有一定特征，有利于与肾上腺其他肿瘤鉴别。

Objective To discuss MSCT imaging features of adrenal ganglioneuroma, and to sum up the key points of differential diagnosis. Methods The MSCT manifestations of 8 cases with adrenal ganglioneuroma confirmed by operation and pathology were analyzed combined with relevant literature. Results All adrenal ganglioneuromas were single ,5 cases of right adrenal gland, 3 cases of left adrenal gland, most tumor density was uniform, density of soft tissue in 7 cases, speckle calcification was seen in 2 cases. No enhanced or mild enhancement was found in the enhanced posterior artery, the portal and delayed period showed mild continuous enhancement and line like separation enhancement and encapsulation enhancement. Low density of water samples in 1 case of CT plain scan, no strengthe- ning at all stages. Conclusion Adrenal ganglioneuroma is rare, the dynamic enhanced performance of MSCT has some characteristics, and it is beneficial to identify other adrenal tumors.