PT - JOURNAL ARTICLE AU - MORIMOTO, MASAKI AU - HONJO, SOICHIRO AU - SAKAMOTO, TERUHISA AU - UCHINAKA, EI AU - AMISAKI, MASATAKA AU - ARAI, YOSUKE AU - YAMAMOTO, MANABU AU - FUKUMOTO, YOJI AU - OSAKI, TOMOHIRO AU - TOKUYASU, NARUO AU - ASHIDA, KEIGO AU - SAITO, HIROAKI AU - FUJIWARA, YOSHIYUKI TI - Pilot Study of Probe-based Confocal Laser Endomicroscopy with Fluorescein-dripping Method for Liver Tumors AID - 10.21873/anticanres.12786 DP - 2018 Aug 01 TA - Anticancer Research PG - 4775--4781 VI - 38 IP - 8 4099 - http://ar.iiarjournals.org/content/38/8/4775.short 4100 - http://ar.iiarjournals.org/content/38/8/4775.full SO - Anticancer Res2018 Aug 01; 38 AB - Background/Aim: Probe-based confocal laser endomicroscopy (pCLE) is a novel diagnostic technique that can provide real-time imaging of tissues at the cellular level. In this study, pCLE was applied to liver tumors and its diagnostic value was evaluated. Patients and Methods: Ten patients who underwent hepatectomy for liver tumors were evaluated with pCLE from February to May 2017. Immediately after liver resection, pCLE evaluation was performed in the operating room as an ex vivo study. The newly-adopted “fluorescein-dripping method” was used for the observation. Results: First, the optimal fluorescein exposure time for the surface of liver was defined in the fluorescein-dripping method. Next, the distinctive findings in the cancerous region were investigated. The characteristic appearance of irregular arrangements of concentrated cells under fluorescein dripping was observed in six of seven hepatocellular carcinoma (HCC) tumors. Conclusion: In all HCC specimens, discrimination of the cancerous region from normal liver was possible with pCLE.