矢田 宏¹, 谷口 信行², 水沼 洋文¹, 金澤 暁太郎¹, 中村 みちる², 川井 夫規子², 森 博昭², 伊東 紘一²

Hiroshi YADA¹, Nobuyuki TANIGUCHI², Hirofumi MIZUNUMA¹, Kyotaro KANAZAWA¹, Michiru NAKAMURA², Fukiko KAWAI², Hiroaki MORI², Kouichi ITOH²

¹自治医科大学消化器一般外科, ²自治医科大学臨床病理

¹The Department of General Surgery, Jichi Medical School, ²The Department of Clinical Pathology, Jichi Medical School

キーワード : Color flow mapping , Thyroid nodule , Differential diagnosis

The color flow mapping method was applied to 35 solid nodules to demonstrate their blood flow patterns. All five papillary carcinoma of the thyroid lacked any demonstrable intranodular color flow image, on the contrary, 10 out of 17 follicular tumors had demonstrable intranodular color flow image. Anaplastic carcinoma and malignant lymphoma of the thyroid showed demonstrable peri-and intranodular color flow image as well. The possibility of differentiating benign follicular tumors from the malignant by the color flow mapping method was discussed.