頚部リンパ節転移の超音波診断

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  • Ultrasonographic evaluation of cervical metastatic lymphadenopathy.

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Ninety-four cervical lymph nodes of 28 patients were evaluated by ultrasonography. All lymph nodes were confirmed histologically, and 39 lymph nodes had metastases.<br>The mean shortest diameter of the metastatic lymph nodes was 16±9mm ultrasonographically, but that of the non-metastatic lymph nodes was 5±2mm. When lymph nodes larger than 8mm in shortest diameter were regarded as metastasis, high sensitivity (94.9%) and specificity (87.3%) were obtained.<br>Eccentric hyperechoic area, that was thought to represent the hilus of the lymph node was observed in 22 lymph nodes. Those were non-metastatic lymph nodes. Otherwise, all of 30 lymph nodes with inhomogeneous internal echoes or with peripheral hypoechoic zone were metastatic lymph nodes.<br>Ultrasonography was a useful examination for evaluating cervical lymph nodes.

収録刊行物

  • 歯科放射線

    歯科放射線 29 (1), 45-50, 1989

    特定非営利活動法人 日本歯科放射線学会

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