嗜铬细胞瘤是一种较为少见的功能性肿瘤,多属良性。近来,随着人们对嗜铬细胞瘤的认识加深以及诊断技术不断改进,其发现率有所增加,在高血压人群中占0.1～0.3%。我院自1973～1985年间共收治24例嗜铬细胞瘤,其中肾上腺髓质嗜铬细胞瘤18例,肾上腺外嗜铬细胞瘤6例。肿瘤最大直径 Pheochromocytoma is a relatively rare functional tumor, mostly benign. Recently, with the deepening understanding of pheochromocytoma and the continuous improvement of diagnostic techniques, the detection rate has increased, accounting for 0.1 to 0.3% of hypertensive population. 24 cases of pheochromocytoma were treated in our hospital from 1973 to 1985, including 18 cases of adrenal medullary pheochromocytoma and 6 cases of extra-adrenal pheochromocytoma. The maximum tumor diameter