CT对肾上腺节细胞神经瘤的诊断价值

目的 探讨CT对肾上腺节细胞神经瘤的诊断价值.方法 回顾性分析南京医科大学第一附属医院2010年9月至2016年6月间经手术及病理证实的16例肾上腺节细胞神经瘤的CT及临床资料,分析病灶的大小、密度、形态、强化程度等CT特点.结果 16例肿瘤均为单发病灶,长径大于2.0 cm,边界清晰,呈均匀低密度影,CT值20~38 Hu,肿瘤呈塑形生长,对邻近血管包绕、推移,但无侵润,3例伴有点状、针尖状、线形钙化(3/16),增强扫描15例动脉期无明显强化(15/16),14例静脉期渐进性轻度强化(14/16),强化幅度小于20 Hu.结论 肾上腺节细胞神经瘤的CT表现具有一定的特征性,有助于诊断和鉴别诊断.

Value of CT in diagnosis of adrenal ganglioneuroma

Objective To explore the value of CT in diagnosis of adrenal ganglioneuroma (AGN). Methods The clinical data and CT findings of 16 patients with AGN who confirmed by operation and pathology in the First Affiliated Hospital of Nanjing Medical University from September 2010 to June 2016 were retrospectively analyzed. The CT fea-tures, such as size, density, shape, and enhancement degree of lesions were analyzed. Results The AGN of 16 cases were solitary and well-defined, and often larger than 2.0 cm in diameter, which showed uniformly low density and CT value of 20~38 Hu. The tumors showed plastic growth, and they surrounded and pressed adjacent vessels without inva-sion. Punctate, needle like, linear calcification were observed in 3 cases (3/16). The AGN had no obvious enhancement in15 cases during arterial phase (15/16), but slight enhancement in14 cases during venous phase (14/16), with strengthen-ing amplitude less than 20 Hu. Conclusion CT findings of AGN have certain characteristics, which are helpful for the diagnosis and differential diagnosis.