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Combination of Helical CT and Doppler Sonography in the Follow-up of Patients with Clinical N0 Stage Neck Disease and Oral Cancer

Sato Eidaa, Misa Sumia, Koichi Yonetsua, Yasuo Kimuraa and Takashi Nakamuraa

a From the Department of Radiology and Cancer Biology, Nagasaki University School of Dentistry, Nagasaki, Japan



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  		FIG 1. Images from the case of an 83-year-old woman with upper gingival cancer.

A, Contrast-enhanced axial CT scan shows reactive node (arrow; short-axis diameter, 4 mm) in level I.

B, Gray scale sonogram of the same node as that shown in A shows reactive node exhibiting normal hilar echogenicity (arrows).

C, Doppler sonogram shows blood flow signals (arrow) overlapping hilar echogenicity.

D, Contrast-enhanced axial CT scan, obtained 10 months after the examinations that produced negative results (shown in A–C), shows metastatic node (arrow; short-axis diameter, 8 mm) exhibiting central nodal necrosis.

E, Gray scale sonogram of the same node as that shown in D shows metastatic node without hilar echogenicity.

F, Doppler sonogram shows abnormal blood flow signals in periphery (arrows). No hilar blood flow signal intensity is seen.





Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X