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Journal of Ultrasound in Medicine, Vol 20, Issue 9 987-992, Copyright © 2001 by American Institute of Ultrasound in Medicine

JOURNAL ARTICLE

Lymph node hilus: gray scale and power Doppler sonography of cervical nodes

A. Ahuja, M. Ying, A. King and H. Y. Yuen
Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, New Territories.

OBJECTIVE: To investigate the difference in the nodal hilus evaluated by gray scale and power Doppler sonography. METHODS: One hundred ninety-two patients with proven cervical lymphadenopathy were included in the study (metastases, n = 118; tuberculosis, n = 56; and lymphoma, n = 18). Lymph nodes were evaluated by gray scale sonography for the echogenic hilus and power Doppler sonography for hilar vascularity. RESULTS: Hilar vascularity was found even though the lymph node did not show an echogenic hilus on gray scale sonography (metastases, 59%; tuberculosis, 66%; and lymphoma, 91%). CONCLUSIONS: Sonologists should be aware that gray scale and Doppler sonography show different aspects of the hilus, and the absence of the hilus on gray scale sonography does not necessarily imply an associated absence of hilar vascularity.


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