白鹿 正通¹, 松田 康雄², 位藤 俊一², 野村 康晴¹, 籔内 以和夫¹, 西岡 稔¹

Masamichi SHIRAGA¹, Yasuo MATSUDA², Toshikazu ITOH², Yasuharu NOMURA¹, Iwao YABUUCHI¹, Minoru NISHIOKA¹

¹大手前病院内科, ²大手前病院外科

¹Department of Internal Medicine, Otemae General Hospital, ²Department of Surgery, Otemae General Hospital

キーワード : Enhanced ultrasonography, Ethanol injection therapy, Hepatocellular carcinoma

We studied ultrasonographic changes in 13 cases (14 nodules) of hepatocellular carcinoma treated by ethanol injection (EI). We performed plain ultrasonography (PU) and enhanced ultrasonography (EU) before and after EI on each nodule. All the nodules revealed hyperechoic change by EU before EL EU findings after EI were classified into three patterns; Pattern 1: Total hypoechoic change. (3 nodules) Pattern 2: Hypoechoic change with capsular hyperechoic change. (3 nodules) Pattern 3: Hypoechoic change with capsular and subcapsular hyperechoic change. (8 nodules) In a patient who showed pattern 3, during the enhancement of the tumor by microbubbles we added percutaneous ethanol injection (PEI), because the enhanced lesions were still considered viable. EU thus makes it possible to recognize residual cancers to be treated.