肾上腺节细胞神经瘤的CT诊断

CT diagnosis of the adrenal ganglioneuroma

目的探讨肾上腺节细胞瘤的CT表现,以提高该病的影像诊断准确性。方法结合相关文献的复习,回顾性分析病理确诊的6例肾上腺节细胞瘤的临床及CT影像资料。结果 6例肾上腺节细胞瘤均为体检或其它合并疾病就诊发现,CT表现2例为水滴形,2例为椭圆形,1例圆形,1例分叶状不规则形;4例行CT平扫+增强,1例仅行CT平扫,1例直接行CT增强,平扫时病灶均表现为均匀低密度,增强后1例不强化,3例延迟强化,其中1例边缘强化较明显,直接增强的1例也可见实质期及延迟期较动脉期CT值有所上升。结论肾上腺节细胞瘤CT表现有一定的特征性,加深对它的认识可以提高对该病的诊断准确性。

Objective To investigate the CT features of the adrenal ganglioneuroma for improvement of the diagnostic accuracy of the adrenal ganglioneuroma.Methods Combined with the literature,the clinical pathological characteristis and CT findings of 6 patients with adrenal ganglioneuroma proved by pathology were retrospectively analyzed.Results All 6 cases were found by physical examination or examination underwent for other disease.In CT,2 cases were in the shape of water droplet,2 cases were oval shape,1case was round shape of round and 1case was lobular.In the 6 cases,plain scan and enhancement scan undergwent in 4 cases.In the two others,one underwent only plain scan and one enhancement scan.In the plain scan,all lesions appeared low attenuation.1 case appeared no enhancement while 3 cases were light delayed enhancment after admitted the contrast matter.Among these 3cases,one was obvious ring enhancement.In the case of admitted only enhancement scan,the CT value was some higher in the venous phase and parenchymal phase than that in arterial phase.Conclusion The CT feature of the ganglioneuroma is characteristic,and the diagnostic accuracy can be improved by enhancement of the cognition of these characteristics.