目的 :探讨嗜铬细胞瘤的诊断和治疗 ;方法 :报告 1990年以来收治的 2 0例嗜铬细胞瘤。临床表现为高血压者 16例 (80 % ) ,其中 18例尿VMA高于正常 ,B超、CT和MRI定位诊断阳性率分别为 90 %、90 %、10 0 %。结果 :全部病例均经手术和病理证实 ,其中良性 19例 ,恶性 1例 ;肿瘤位于肾上腺者 17例 (85 % ) ,异位嗜铬细胞瘤 3例 (15 % )。结论 :强调定性和定位诊断的重要性 ,充分的术前准备 ,手术切除肿瘤是根本的治疗方法。 Objective: To investigate the diagnosis and treatment of pheochromocytoma. Methods: Report 20 cases of pheochromocytoma treated since 1990. The clinical manifestations of hypertension were 16 cases (80%), of which 18 cases had higher urinary VMA than normal, and the positive rates of B-ultrasonography, CT and MRI were 90%, 90%, and 10%, respectively. Results: All the cases were confirmed by operation and pathology. Among them, 19 cases were benign and 1 case was malignant; 17 cases (85%) were located in the adrenal gland and 3 cases (15%) were ectopic pheochromocytoma. Conclusions: Emphasizing the importance of qualitative and positional diagnosis, adequate preoperative preparation, and surgical resection of the tumor are fundamental treatment methods.