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There is a similarity of histological features and survival between ovarian mucinous carcinoma (MC) with expansile invasion and ovarian mucinous borderline tumor (MBT). The aim of this study was to compare the clinical outcomes of MC with expansile invasion with those of MBT based on the 2020 World Health Organization (WHO) criteria. A pathological review was performed on patients with MC, ovarian MBT, and seromucinous borderline tumors that underwent surgery at our hospital between 1984 and 2019. Clinicopathological features were compared retrospectively between MC with expansile invasion and MBT. Among 83 cases of MC, 85 cases of MBT, and 12 cases of seromucinous borderline tumor, 25 MC cases with expansile invasion and 98 MBT cases were included through review. MC cases with expansile invasion were diagnosed with advanced International Federation of Gynecology and Obstetrics (FIGO) stages more frequently (P = .02) than that of MBT cases. In addition, patients with MC with expansile invasion received adjuvant chemotherapy more often (P

This paper introduces the authors’ new English discussion board using TED Talks videos on the Internet, intended to establish an interdisciplinary ‘learning’ community. This updated discussion board aims at facilitating intercollegiate communication based on a Social Networking Service. It basically consists of four parts; 1) a short video taken from TED Talks, 2) scripts of the talks in English and Japanese, 3) a ‘Glossary’ for vocabulary building based on the video, and 4) a ‘Forum’ for discussion on some topics relating to the video. Students and teachers, both of whom are participants in the discussion, are to watch the video and discuss the topics in the ‘Forum’. Thus, the authors’ aim is for the participants to make up a ‘learning community’ by sharing information, exchanging their messages and enhancing their mutual understanding. This paper also reports how practice using the discussion board was carried out at National Institute of Technology, Gunma College. As well as explaining the activity steps, it also demonstrates how the interactions between the students were developed with some examples of their comments posted in English and analyses their attitudes towards participating in the discussion.