Publikation

Evaluation of paragangliomas presenting as a cervical mass on color-coded Doppler sonography

Wissenschaftlicher Artikel/Review - 01.01.2002

Bereiche
PubMed
DOI

Zitation
Stöckli S, Schuknecht B, Alkadhi H, Fisch U. Evaluation of paragangliomas presenting as a cervical mass on color-coded Doppler sonography. The Laryngoscope 2002; 112:143-6.
Art
Wissenschaftlicher Artikel/Review (Englisch)
Zeitschrift
The Laryngoscope 2002; 112
Veröffentlichungsdatum
01.01.2002
ISSN (Druck)
0023-852X
Seiten
143-6
Kurzbeschreibung/Zielsetzung

OBJECTIVES: To assess the potential of color Doppler sonography to identify cervical mass lesions as paragangliomas. STUDY DESIGN: Prospective evaluation. METHODS: Fifteen patients with 18 paragangliomas (13 carotid body tumors, 3 vagal and 2 temporal) presenting as a mass in the neck were investigated using color Doppler sonography. RESULTS: All paragangliomas presented in B-mode sonography as solid, well-defined, and hypoechoic tumors. Color Doppler imaging revealed hypervascularity in 15 (82%) tumors. No flow signal was detected in 3 carotid body tumors at standard velocity encoding (30 cm/s). Only carotid body tumors could be assessed in their full extent. Temporal and vagal paragangliomas were only partially visible. Carotid body tumors showed a splaying of the carotid bifurcation with displacement of the external carotid anteriorly and both the internal carotid and the internal jugular vein posteriorly. Anterior displacement of both carotid arteries and posterior displacement of the internal jugular vein was found in the 3 vagal paragangliomas. The caudal tumor extension of the 2 temporal paragangliomas was recognized within the expanded lumen of the internal jugular vein. According to the direction of tumor growth and vascular supply, the intratumoral flow signal was predominantly directed upward in carotid body tumors and downward in vagal and temporal paragangliomas. CONCLUSIONS: Based on the appearance in the B-mode, the hypervascularity, the relationship toward the carotid arteries and the internal jugular vein, and the intratumoral flow direction, color Doppler sonography was able to establish the diagnosis and type of a paraganglioma.