The 71st Annual Meeting of the Japan Society of Human Genetics
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Session Details

Poster Session

[P2-04]Cancer Genetics 2

Fri. Nov 20, 2026 3:30 PM - 4:30 PM JST
Fri. Nov 20, 2026 6:30 AM - 7:30 AM UTC
Exhibition Hall 1-A+2 (4) (Exhibition Hall 1-A+2, Exhibition Building, Sendai International Center)

[P2-04-01]Implementation of universal mismatch repair screening for endometrial carcinoma and genetic medicine collaboration

Ryoko Imatani1, Junko Haraga1, Kohei Nishida1, Chiaki Kashino1, Takashi Mitsui1, Kana Yamatogi2, Mashu Futagawa2, Sayoko Takeuchi2, Tetsuya Okazaki2, Hideki Yamamoto2, Chikako Ogawa1, Shoji Nagao1, Akira Hirasawa2, Hisashi Masuyama1 (1. Department of Obstetrics and Gynecology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2. Department of Clinical Genetics and Genomic Medicine, Okayama University Hospital)

[P2-04-02]Initial Experience with Comprehensive Genomic Profiling in Renal Cell Carcinoma

Sachi Kitayama1,2, Satoru Kawakami1, Yoshiko Mori2, Noriko Tanabe2, Shoichi Nagamoto1, Yohei Okada1, Shuji Momose3, Morihiro Higashi3, Akihiro Yano1 (1. Department of Urology, Saitama Medical Center, Saitama Medical University, 2. Department of Clinical Genetics, Saitama Medical Center, Saitama Medical University, 3. Department of Pathology, Saitama Medical Center, Saitama Medical University)

[P2-04-03]A case of bladder cancer in which BRCA1 was identified by PGPV in cancer gene panel testing

Ichiko Yamakita1, Akari Hirayama2, Akari Utsunomiya3, Hiroshi Honda4 (1. Department of Cancer Genome and Clinical Oncology, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima, Japan, 2. Department of Cancer Genome and Cancer Consultation and Support Center, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima, Japan, 3. Department of Cancer Genome and Pediatrics, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima, Japan, 4. Department of Cancer Genome and Gynecology, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima, Japan)

[P2-04-04]Retrospective analysis of BRCA domains and PARP inhibitor efficacy in BRCA1/2 pathogenic variant-positive ovarian cancer

Masako Hashimoto1,2, Futaba Inoue2, Michihiro Tanikawa2, Hirofumi Inaba2, Sho Mizuno2, Yoshiko Kawata2, Akira Kawata2, Kayo Asada2, Akira Nishijima2, Ayumi Taguchi2, Katsutoshi Oda3, Miyuki Harada2, Yasushi Hirota2 (1. Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan, 2. Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan, 3. Department of Clinical Genomics, The University of Tokyo Hospital, Tokyo, Japan)

[P2-04-05]Withdrawn

[P2-04-06]Lynch Syndrome Identified After Endometrial Cancer in a Patient with Prior Rectal and Subsequent Sigmoid Cancer

Tsukuru Kamoshida, Yoshika Akizawa, Yu Horibe, Toshiyuki Kanno, Gen Ishikawa, Akira Nakabayashi, Shigeki Yamaguchi, Yuuko Sato, Toshiyuki Yamamoto, Tutomu Tabata (Tokyo Women's Mediacal University Hospital)

[P2-04-07]Gynecologic Surveillance in Lynch Syndrome: Three Cases Illustrating Benefits and Limitations

Mari Inada1,2,3, Tokuzou Kasai1, Hirokazu Usui4, Yujii Habu5, Toru Tochigi6, Jun Yasutomi7, Midori Kawano8, Akira Hara9, Kazuyuki Matsushita3,10, Yoshihiro Onouchi3,11, Akira Hata1,3, Fumio Nomura1,3 (1. Chiba Foundation for Health Promotion and Disease Prevention, 2. Chiba Rousai Hospital Department of Genomic Medicine and Clinical Genetics, 3. Chiba University Hospital Division of Clinical Genetics, 4. Chiba Cancer Center Department of Gynecology, 5. Chiba University Hospital Department of Gynecology, 6. Chiba University Hospital Department of Esophageal-Gastro-Intestinal Surgery, 7. Chiba Rousai Hospital Department of Gastroenterological Surgery, 8. Chiba Rousai Hospital Department of Gynecology, 9. Chiba Rousai Hospital Department of Hematology and Oncology, 10. Chiba University Hospital Division of Laboratory Medicine, 11. Chiba University Graduate School of Medicine Department of Public Health)

[P2-04-08]Six-Year Report on Risk-Reducing Surgery and Decision-Making in Pathogenic BRCA1/2 Variant Carriers at Our Institution

Junko Miyamoto1, Koushi Kawakami2,3, Tomoki Nonaka3,4, Maki Taniguchi5, Takeru Higa1, Hideyuki Onuma6, Naoki Yoshino7, Tetsuya Okazaki3,8, Akiyoshi Kanazawa3,9 (1. Department of Obstetrics and Gynecology, Shimane Prefectural Central Hospital, Shimane, Japan, 2. Department of Clinical Oncology, Shimane Prefectural Central Hospital, Shimane, Japan, 3. Clinical Genomic Medicine Promotion Office, Shimane Prefectural Central Hospital, Shimane, Japan, 4. Department of Clinical Genetics, Tottori University Hospital, Tottori, Japan, 5. Genome Medical Center, Hyogo Prefectural Kobe Children's Hospital, Hyogo, Japan, 6. Department of Pathology, Shimane Prefectural Central Hospital, Shimane, Japan, 7. Department of Gynecology, Tokushukai Medical Corporation Izumo Tokushukai, Shimane, Japan, 8. Department of Clinical Genomic Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan, 9. Department of Gastroenterological Surgery, Shimane Prefectural Central Hospital, Shimane, Japan)

[P2-04-09]Nonsense-Associated Altered Splicing Observed in a Lynch Syndrome Family with an MSH2 Nonsense Variant

Kanako Ogura1, Atsushi Yamada2, Akira Inaba1, Sayoko Haruyama1, Sayaka Honda1, Masako Torishima1,3, Hiromi Murakami1, Tomomi Oka1, Yuko Yamaguchi1, Hidenori Kawasaki1,3, Makiko Egawa1, Takeshi Nakajima1,4, Yo Niida5, Shinji Kosugi1,3 (1. Clinical Genetics Unit, Kyoto University Hospital, Kyoto, Japan, 2. Department of Clinical Oncology, Kyoto University Hospital, Kyoto, Japan, 3. Department of Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan, 4. Division of Genomic Medicine, Osaka International Cancer Institute, Osaka, Japan, 5. Division of Genomic Medicine, Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan)

[P2-04-10]Young-onset metachronous bilateral breast cancer with a germline TP53 pathogenic variant in a BRCA1/2-negative patient

Chihiro Toyoda, Madoka Iwase, Kana Kawabe, Emi Taniguchi, Saki Shimoyama, Nao Torii, Gai Inaguma, Reiko Ohata, Takahiro Ichikawa, Dai Takeuchi, Yuko Takano, Toyone Kikumori, Masayuki Nagahashi (Department of Breast and Endocrine Surgery, Nagoya University, Aichi, Japan)

[P2-04-11]Implementation of TCGA Molecular Classification Panel in Endometrial Cancer Care Centered on Radiotherapy

Kazuho Nakanishi, Masatoshi Sugita (Department of Gynecology, Shinmatsudo Central General Hospital, Chiba, Japan)

[P2-04-12]Current Status and Challenges of Genetic Testing in Cancer-Unaffected Individuals After Genetic Counseling for HBOC

Saki Murase1,2, Tomomi Shiga1,3, Kana Matsuhara1, Yoshimasa Bomoto1,2, Taro Kuwayama1, Kaori Otsuka1, Kyoko Kikuno1, Yukio Suzuki1, Keiko Terazawa1,3, Yoh Hayasaki1, Kimiko Asai2, Yumi Matsuyama2, Masanori Isobe1,3 (1. Department of Obstetrics and gynecology, Gifu University Hospital, 2. Clinical Genetics Center, Gifu University Hospital, 3. Perinatal and Reproductive Medicine Center, Gifu University Hospital)

[P2-04-13]Current Status of Colorectal Surveillance and Metachronous Colorectal Cancer in Lynch Syndrome

Shigenori Wakita1,2, Takayoshi Kawabata1, Mami Kaneko1, Rena Yamazaki3, Yasunari Mizumoto3, Shiro Terai4, Shigetsugu Tsuji2, Atsushi Nohara1 (1. Department of Clinical Genetics, Ishikawa Prefectural Central Hospital, Ishikawa, Japan, 2. Department of Gastroenterology, Ishikawa Prefectural Central Hospital, Ishikawa, Japan, 3. Department of Gynecology, Ishikawa Prefectural Central Hospital, Ishikawa, Japan, 4. Department of Gastroenterological surgery, Ishikawa Prefectural Central Hospital, Ishikawa, Japan)

[P2-04-14]A Case of Li-Fraumeni Syndrome Difficult to Diagnose Genetically

Miki Tsuboi1, Gou Yamamoto2, Naomi Hayashi2, Reiko Yoshida2 (1. Division of Breast Oncology, Saitama Prefectural Cancer Center, Saitama, Japan, 2. Department of Medical Genetics and Genomics, Saitama Prefectural Cancer Center, Saitama, Japan)

[P2-04-15]The impact of BRCA genetic testing for breast cancer-free individuals becoming covered by insurance.

Fuminori Aki (Ito Breast Surgery Clinic)

[P2-04-16]Reimbursement Gap for Unaffected Relatives in HBOC Families Identified by Tumor-Only CGP in Japan

Tomoko Sahara1, Maho Kuroda1, Masafumi Toyosima1,3, Ikuno Kawabata1,3, Naoko Sakuma1,4, Kei Uehara1,2, Hidehiko Miyake1,5, Takeshi Yamada1,2 (1. Division of Clinical Genetics, Nippon Medical School Hospital, Tokyo, Japan, 2. Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Nippon Medical School Hospital, 3. Department of Obstetrics and Gynecology, Nippon Medical School Hospital, 4. Otolaryngology Head and Neck Surgery, Nippon Medical School Hospital, 5. Department of Genetic Counseling, Graduate School of Humanities and Science, Ochanomizu University)

[P2-04-17]Preliminary results for detection of secondary findings using CGP for hematological disorder

Yoshinaga Okugawa1,2, Yuka Sugimoto3, Ryo Hanaki1, Ryotaro Hashizume1, Hiroshi Imai1, Ikuyo Mochiki1, Takahito Kitajima1, Takumi Fujiwara1, Kaname Nakatani1, Yuji Toiyama2 (1. Department of Genomic Medicine, Mie University Hospital, 2. Department of Gastrointestinal and Pediatric Surgery, Mie University, 3. Department of Hematology and Oncology, Mie University)

[P2-04-18]Development of Photoimmunotherapy Targets for Hereditary Breast and Ovarian Cancer-Associated Breast Cancer

Hirotsugu Yanai1,3, Naoko Yoshida2, Yuichiro Kikawa1, Chika Sato3, Aiko Obayashi1, Tomoe Taji1, Sang Nguyen1, Yoshiki Yasukochi4, Koichiro Higasa4, Hirofumi Hanaoka5, Koji Tsuta2, Masahiro Takada1 (1. Department of Breast Surgery, Kansai Medical University, Osaka, Japan, 2. Department of Pathology, Kansai Medical University, Osaka, Japan, 3. Clinical Genetics Center, Kansai Medical University Hospital, Osaka, Japan, 4. Department of Genome Analysis, Institute of Biomedical Science, Kansai Medical University, Osaka, Japan, 5. Near InfraRed Photo-Immuno Therapy Research Institute, Kansai Medical University, Osaka, Japan)

[P2-04-19]Clinical Characteristics and Genetic Counseling in BRCA-Positive Prostate Cancer at Our Institution

Norihiro Kusumi1, Yuki Kurihara1, Azusa Matsumi1, Moto Tokunaga1, Risa Kubota1, Takesi Hirata1, Takaharu Ichikawa1, Tomoyasu Tushima1, Mutsuko Yamashita2, Minayo Aizawa2, Syogo Watari3, Akira Hirasawa4 (1. Department of Urology, NHO Okayama Medical Center, Okayama, Japan, 2. Cancer Counseling and Support Center, NHO Okayama Medical Center, 3. Department of Urology, Kagawa Prefectural Central Hospital, 4. Department of Clinical Genetic Medicine, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University)

[P2-04-20]A Case of MEN1 in Which Expert Panel Discussion Prompted Reclassification of a VUS as Pathogenic

Kaori Kimura1, Hiroaki Hanafusa1,2, Keiko Tanaka1, Shiro Kimbara1,3, Naomi Kiyota3, Yuki Sawada1, Yoshitaka Asagai1,2, Meiko Nishimura3,4, Yohei Funakoshi3, Akiharu Kubo1,5, Tomonari Kunihisa1,6, Ryosuke Bo1,2, Kandai Nozu1,2 (1. Department of Medical Genetics, Kobe University Hospital, Kobe, Japan, 2. Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan, 3. Division of Medical Oncology/Hematology, Department of Medicine, Kobe University Hospital and Graduate School of Medicine, Kobe, Japan, 4. Department of Breast Medical Oncology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan, 5. Department of Dermatology, Kobe University Graduate School of Medicine, Kobe, Japan, 6. Department of Breast and Endocrine Surgery, Kobe University Graduate School of Medicine, Kobe, Japan)
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