异位嗜铬细胞瘤(Ectopic pheochromocytoma)即肾上腺髓质以外嗜铬细胞瘤,是起源于交感神经鞘膜细胞的肿瘤,从颈部到盆腔任何有交感神经节存在的地方均可发生[1]。笔者在瑞金医院进修期间搜集了2005年1月至2011年8月该院收治的经手术病理证实的33例异位嗜铬细胞瘤患者资料,回顾性分析其螺旋CT表现并复习相关文献,以提高对 Ectopic pheochromocytoma, pheochromocytoma outside the adrenal medulla, is a tumor that originates from the sympathetic nerve sheath cells and occurs anywhere from the neck to the pelvis where sympathetic ganglia exist [1] . The author collected data of 33 patients with ectopic pheochromocytoma confirmed by operation and pathology admitted to Ruijin Hospital from January 2005 to August 2011 and retrospectively analyzed the spiral CT findings and reviewed the related literature Raise right