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报道恶性嗜铬细胞瘤20例，占本院近40年来收治嗜铬细胞瘤总病例数的10．5％。20例中表现有高血压17例，尿儿茶酚胺升高16例。肿瘤位于胸腔纵膈2例，肾上腺3例，腹主动脉旁7例，盆腔4例，膀胱壁4例。手术所见及长期严密随访是早期诊疗恶性嗜铬细胞瘤的关键。并就恶性嗜铬细胞瘤的诊断依据、误诊原因及治疗预后进行分析讨论。
20 cases of malignant pheochromocytoma were reported, accounting for 10.5% of the total number of cases of pheochromocytoma treated in this hospital in the past 40 years. In 20 cases, there were 17 cases of hypertension and 16 cases of elevated catecholamines in urine. The tumors were located in 2 cases of mediastinal temporomandibular disease, 3 cases of adrenal gland, 7 cases of abdominal aorta, 4 cases of pelvic cavity, and 4 cases of bladder wall. Surgical findings and long-term follow-up are the key to early diagnosis and treatment of malignant pheochromocytoma. The diagnosis base, misdiagnosis reasons and treatment prognosis of malignant pheochromocytoma were analyzed and discussed.