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AJR 2000; 174:1279-1284
© American Roentgen Ray Society

Contrast-Enhanced Color Doppler Sonography for Evaluation of Enlarged Cervical Lymph Nodes in Head and Neck Tumors

Jörg D. Moritz1, Arwed Ludwig2 and Jörg-W. Oestmann3

1 Department of Pediatric Radiology, University Hospital of Giessen, Abteilung Kinderradiologie, Justus-Liebig-Universität Giessen, Feulgenstra. 12, 35392 Giessen, Germany.
2 Department of Oral and Maxillofacial Surgery, University Hospital of Göttingen, Robert Koch Stra. 40, 37075 Göttingen, Germany.
3 Charité, Campus Virchow Hospital, Strahlenklinik und Poliklinik, Augustenburger Platz 1, 13353 Berlin, Germany.

OBJECTIVE. We determined whether contrast-enhanced color Doppler sonography can differentiate benign from malignant enlarged cervical lymph nodes in head and neck tumors.

SUBJECTS AND METHODS. Ninety-four enlarged lymph nodes in 39 adult patients (32 men and seven women; age range, 30-81 years) were examined with B-mode sonography and with unenhanced and contrast-enhanced color Doppler sonography. All patients had carcinoma of the oral cavity. Histologically, lymphadenitis was found in 57 nodes and metastases in 37 nodes. Geometric dimension, texture, and margin of the node and detection and location of vessels were noted. Histology and imaging findings were correlated.

RESULTS. The transverse-to-longitudinal diameter ratio in combination with texture and margin analysis resulted in a correct diagnosis in only approximately 79% of the nodes. With contrast-enhanced color Doppler sonography, 86% of nodes showed vessels, and 28% of nodes showed vessels with this technique exclusively. Characteristic configurations were identified: hilar vessels with branching indicated lymphadenitis (sensitivity, 98%; specificity, 100%), and predominantly peripheral vessels indicated metastases (100%, 98%). These findings changed the diagnosis in 13 nodes, changed the therapy in four patients, and led to an incorrect diagnosis in one patient.

CONCLUSION. Enlarged lymph nodes can be characterized as metastatic or inflammatory with high diagnostic accuracy on the basis of their vascular architecture as seen on contrast-enhanced color Doppler sonography.


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