[Chemodectoma in the carotid triangle region].

The only treatment of the extensive and infiltrative carotid body tumors is radical resection. Exact preoperative diagnosis in unknown tumors of the neck avoid hazardous complications during operative resection. This report contains diagnosis and definition of these rare tumors. Various operative procedures of tumor-resection are discussed. Carotid angiographies and operative photographs from three cases demonstrate the extent and close relation of the carotid artery.