目的加深对异位嗜铬细胞瘤(EPCC)的影像学认识,提高对本病诊断能力。方法回顾性分析4例异位嗜铬细胞患者的临床资料、影像学表现。结果 4例异位嗜铬细胞瘤中,2例发生在肾门附近,1例在脊椎旁,1例发生于主动脉与髂动脉分叉后部,(Zuckerkandl器),3例有高血压,1例无高血压病史,3例尿三甲基四羟基苦杏仁酸(VMA)水平均有增高;CT表现为不均匀中等密度,有显著强化,1例见肾脏及周围结构呈受压改变。结论异位嗜铬细胞瘤的影像学改变主要是明确显示特殊部位的包块,血供丰富,常见中心坏死,压迫周围器官,结合临床阵发性血压升高和尿儿茶酚胺代谢产物测定,一般术前能做出初步诊断,但无高血压病史的病例,很难做出明确的诊断,甚至发生误诊。 Objective To deepen the imaging understanding of ectopic pheochromocytoma (EPCC) and improve the diagnostic ability of this disease. Methods Retrospective analysis of 4 cases of ectopic chromaffin cells in patients with clinical data, imaging findings. Results In 4 cases of ectopic pheochromocytomas, 2 cases occurred near the renal hilum, 1 case was adjacent to the spine, 1 case occurred in the posterior bifurcation of the aorta and iliac artery (Zuckerkandl apparatus), 3 cases had hypertension, 1 had no history of hypertension and 3 had increased urinary trimethylammonium (VMA) levels. The CT showed uneven medium density with significant enhancement. In 1 case, the structure of the kidney and its surrounding tissues were changed under pressure. Conclusions The imaging changes of ectopic pheochromocytoma are mainly to clearly show the mass of special parts of the mass, rich in blood supply, common central necrosis, oppression of surrounding organs, combined with clinical paroxysmal elevated blood pressure and urinary catecholamine metabolites determination, general surgery Before making a preliminary diagnosis, but no history of hypertension, it is difficult to make a clear diagnosis, or even misdiagnosis.