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Journal of Ultrasound in Medicine, Vol 7, Issue 6 305-310, Copyright © 1988 by American Institute of Ultrasound in Medicine

JOURNAL ARTICLE

Ultrasonic evaluation of cervical metastatic lymphadenopathy

F. Sakai, K. Kiyono, S. Sone, Y. Kondo, M. Oguchi, T. Watanabe, Y. Sakai, Y. Imai, S. Takeda, K. Yamamoto and al. et
Department of Radiology, School of Medicine, Shinshu University, Matsumoto, Japan.

We investigated the location, size, and shape of cervical lymph nodes in head and neck cancer, using a 7.5-MHz ultrasound scanner. First, the different criteria for normal size were obtained for cervical lymph nodes in each region; lymph nodes greater than 9 mm in thickness in the internal jugular chain or greater than 7 mm in thickness in the submandibular and submental chains should be suspected of harboring metastatic foci. Second, metastatic nodes showed a more rounded configuration than nonmetastatic ones. Third, a comparative study of metastatic lymph nodes between the in vivo and in vitro ultrasonograms and the corresponding histopathological findings disclosed that an echogenic region in an ultrasonogram of a metastatic node was caused by coagulation necrosis, and a cystic area of liquefaction necrosis.


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