节细胞神经瘤的CT表现

CT Findings in Ganglioneuroma

目的 探讨节细胞神经瘤的特征性CT表现。材料与方法 对 11例经病理证实的节细胞神经瘤的CT表现进行回顾性分析。结果 8例位于右侧肾上腺 ,3例位于腹膜后 ,3例中 1例同时合并双侧肾上腺嗜铬细胞瘤。肿瘤最大直径 3～ 6cm ,平均4.4cm。呈椭圆形者 9例 ,2例呈圆形。肿瘤边界均清晰 ,无周围组织和血管侵犯征象。平扫呈均匀低密度 ,平均 2 7.8± 4.7HU ,内有点状钙化者 3例 ( 2 7% )。增强扫描有轻度强化 ,平均 3 6.3± 9.4HU。结论 节细胞神经瘤有一些特征性CT表现 ,但确诊仍依赖组织学检查。

Objective To characterize the CT features of ganglioneuroma.Materials and Methods CT findings in 11 cases with pathologically proved ganglioneuroma were retrospectively analyzed.Results Of 11 lesions, 8 were located in the right adrenal gland, 3 in retroperitoneal space (one case complicated bilateral adrenal pheochromocytomas). The largest diameter of the tumors was 3～6cm, with a mean diameter of 4.4cm. Nine lesions were oval in shape, the other two were round. All tumors were clearly outlined. No any sign of invasion of the surrounding organs was found. The lesions were low density on plain CT scans with a mean CT value of 27.8±4.7HU, and showed slight enhancement on contrasted scans (mean 36.3±9.4HU).Conclusion The diagnosis of ganglioneuroma should be based on the pathologic study, though it carries some imaging features on CT scan.