An evaluation of color duplex scanning in the primary diagnosis and management of carotid body tumors.

Carotid body tumors present a diagnostic challenge. Despite technologic diagnostic advances, misdiagnosis resulting in blind biopsy or exploration through a limited incision still occur. Color duplex scanning has recently been used to evaluate carotid body tumors in our institution. A characteristic feature of these tumors found with this modality is wide splaying of the carotid bifurcation by a hypervascular mass. Color duplex scanning is the noninvasive modality of choice for the primary diagnosis of carotid body tumors. Additionally, it may be of use in screening for familial carotid body tumors and sequential follow-up of nonoperatively managed tumors.