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AJNR - American Journal of Neuroradiology

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Metastatic Adenopathy from Nasopharyngeal Carcinoma: Successful Response to Radiation Therapy Assessed by Color Duplex Sonography

Anil T. Ahuja^,a, Stella S. Y. Ho^a, Sing F. Leung^a, Jacqui Kew^a and Con Metreweli^a

^a From the Departments of Diagnostic Radiology and Organ Imaging (A.T.A., S.S.Y.H., J.K., C.M.) and Clinical Oncology (S.F.L.), Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, N.T., Hong Kong.

View larger version (85K): [in a new window]   FIG 1. Enlarged metastatic cervical node from NPC. Color Doppler sonogram shows increased central and peripheral intranodal vascularity. Red indicates flow toward the transducer, blue indicates flow away from the transducer. FIG 2. Same node as in figure 1, 8 weeks after completion of RT. The node remains enlarged, but color Doppler sonogram shows a reduction in the intranodal vascularity. Red indicates flow toward the transducer, blue indicates flow away from the transducer.

View larger version (79K): [in a new window]   FIG 3. Enlarged elliptical reactive lymph node. Color Doppler sonogram shows increased central vascularity. Red indicates flow toward the transducer, blue indicates flow away from the transducer