化学感受器瘤是非常罕见肿瘤 ,由主要发生于颈动脉分叉处的化学感受器细胞构成。海拔较高地区较常见。其中绝大多数是良性的 ,但对其潜在的转移性(2 %到 2 5 % )意见不一。Say等 (1973)回顾了 13例转移性的颈动脉体瘤 (CBT) ,Zbaren和 L ehman(1985 )回顾了 10 6例伴有局部 (5 Chemoreceptor neoplasms are very rare tumors consisting of chemoreceptor cells that occur predominantly at the bifurcation of the carotid artery. Higher altitude areas are more common. The vast majority of them are benign, but disagree on their potential for transfer (2% to 25%). Say et al. (1973) reviewed 13 cases of metastatic carotid body tumor (CBT), and Zbaren and Lehman (1985) reviewed 106 cases with localized (5