Call for Abstracts

Submission Period

March 2 (Mon) – April 28 (Tue), 2026 (JST)

Presentation Type & Time

Only on-site (in-person) presentations will be accepted.
Only oral presentations will be accepted; no poster presentations will be offered.

Presentation type
Symposium
Each symposium will last 75–90 minutes.
The allocation of time for presentations, Q&A, and discussion will depend on the number of accepted abstracts.
International Session
Presentation Time (Tentative):6 minutes
Q&A:2 minutes

Abstract Submission Guidance

All presentations must be conducted in English, including the abstract, presentation slides.
Please ensure that your abstract and all presentation materials are prepared in English.

  • Abstract title is up to 200 characters.
  • Abstract body is up to 1,800 characters.
  • Up to 20 co-authors including the first author.
  • Up to 20 affiliations including affiliation of the first author.
  • The abstract must not contain any graphics, tables, pictures, or other types of figures.

Ethics Review

Our society established in 2017 the Ethical Guidelines for Medical and Health Research Involving Human Subjects in accordance with the notifications issued by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) and the Ministry of Health, Labour and Welfare (MHLW).

These Guidelines stipulate that “Researchers and related personnel must comply with applicable laws and regulations and relevant guidelines, and must conduct research appropriately in accordance with a research protocol that has been reviewed and approved by an Ethics Review Committee (or, in the case of specified clinical research, a Certified Review Board) and authorized by the head of the research institution.”

When submitting an abstract, applicants will be required to declare whether their research is subject to ethical review.
Applicants will be required to respond to the following declaration items in the system at the time of abstract submission.

The Japan Society of Coloproctology
Journal of the Anus, Rectum and Colon
Ethics Review/Checkbox

Conflict of Interest Disclosure

At the time of abstract submission, for the lead author and all co-authors, please disclose any COI (Conflict of Interest) status related to companies, organizations, or entities associated with the presentation topic within the past three years from the time of submission, by self-declaration for each author.

①Honoraria $10,000 or more per year from one company or organization.
②Stock or stock options $10,000 or more per year or holding 5% or more of shares in one private company
③Royalties or licenses $5,000 or more per year for one patent
④Lecture fees $5,000 or more per year from one company or organization
⑤Manuscript fees $5,000 or more per year from one company or organization
⑥Research funding $10,000 or more per year of research funding including funding for collaborative research, funded research, and drug trials paid by one company or organization
⑦Scholarship fund $10,000 or more per year provided by one company or organization to a disclosing party, his/her course/class, or laboratory.
⑧Belonging to endowed chair by business
⑨Travel fees, gifts, and others $500 or more per year from one company or organization

Notification of acceptance

All submitted abstracts will undergo peer review.
Notification of acceptance will be sent via e-mail to the first author by the end of July, 2026.

Presenter Change and Withdrawal Policy

As a general rule, the first author shall be responsible for presenting the accepted abstract.
However, in the event that the first author is unable to present due to unforeseen circumstances, the following measures shall apply. Please contact us at reg_jscp81@c-linkage.co.jp .
Please note that failure to present without prior notification shall result in withdrawal of the abstract.

Substitute Presentation by a Co-Author

A substitute presentation is allowed only if all of the following conditions are met:
-The substitute presenter is a co-author who can respond to questions during the presentation.
-The presentation credit remains with the registered first author, and the substitute co-author agrees that it will not count as their own academic achievement.
*Information in the online abstract, abstract app, or J-STAGE will not be modified.
The substitute presenter must clearly state at the beginning of the presentation that they are presenting on behalf of the first author.

Abstract Withdrawal

Abstracts that are withdrawn will not be recognized as presentation achievements.
Abstracts that have been published in the online program or abstract app will be removed.
However, the timing of removal depends on the date of the abstract withdrawal request.
In addition, withdrawn abstracts will not be published on J-STAGE after the conference.

Personal information

Personal information provided during abstract submission will not be used for any purpose other than society membership management and academic presentation, and will be strictly protected by the secretariat.

Abstract Submission

After abstract submission, a confirmation email will be automatically sent to your email address.

Symposium - Chair’s Remarks

Symposium

SY-C : Cutting edge of endoluminal/ transanal surgery for colorectal cancer

Chair:

Kotaro Maeda Medical Cooperation Himawariseishinnkai Oumeimai Hospital

Motohiko Kato Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine

Recent advances in colorectal minimally invasive therapy have expanded both endoluminal and transanal approaches. The improvement of resection technique of endoscopic submucosal dissection (ESD) and secure suturing have enabled deeper-layer techniques, including per anal endoscopic myectomy (PAEM). Meanwhile, transanal surgical techniques such as transanal endoscopic surgery continue to evolve, improving precision and safety. In this session, we will discuss indications, technical innovations, and current challenges, and explore how endoscopic and surgical strategies can complement each other to optimize patient-centered colorectal treatment.

SY-F : Recent advances in surgery for colorectal diseases

Chair:

Kay Uehara Department of Gastroenterological Surgery, Nippon Medical School

Welcome to the “Recent Advances in Surgery for Colorectal Diseases” symposium at the 81st JSCP Annual Meeting in Nagasaki.
This session is designed to showcase global progress in colorectal surgery, with a focus on innovation, technique, and clinical outcomes. As we embrace a more collaborative and inclusive scientific community, we invite contributions from both domestic and international surgeons, aiming to stimulate cross-border dialogue and future partnerships.
Join us in exploring the next frontiers of colorectal disease management.

SY-G : Gut Microbiota and Colorectal Diseases: A Future Unlocked by the Microbiome

Chair:

Hiroto Miwa Kawanishi City Medical Center

Tomohisa Takagi Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine

As research on the gut microbiome continues to rapidly evolve, innovative findings in this field are transforming our understanding of colorectal diseases, from basic mechanisms to clinical applications. This symposium aims to provide an international platform for researchers and clinicians to share cutting-edge research, novel methodologies, and emerging therapeutic strategies related to the gut microbiota and colorectal disorders.
We warmly welcome submissions covering a wide range of topics, including but not limited to: basic science, translational research, clinical studies, and microbiome-based interventions. We especially encourage young investigators and early-career researchers to submit their original work and actively participate in this scientific exchange. We sincerely look forward to receiving your valuable contributions and to welcoming you to this exciting session.

International Session Category

(I)Category A
A01 Early-stage Colon Cancer
A02 Early-stage Rectal Cancer
A03 Advanced Colon Cancer
A04 Advanced Rectal Cancer
A05 Metastatic and Recurrent Colorectal Cancer
A06 Hereditary Colorectal Cancer and Polyposis
A07 Other Colorectal Malignancies
A08 Benign Colorectal Tumors
A09 Ulcerative Colitis
A10 Crohn’s Disease
A11 Other Inflammatory Bowel Diseases
A12 Functional Bowel Disorders
A13 Other Benign Colorectal Diseases
A14 Bowel Obstruction
A15 Rectal Prolapse and Pelvic Organ Prolapse
A16 Constipation, Fecal Incontinence, and Defecatory Disorders
A17 Hemorrhoids
A18 Anal Fistula
A19 Anal Fissure
A20 Anorectal pain
A21 Other Anal Diseases
A22 Stoma Care and Management
A23 Colorectal Diseases in the Elderly
A24 Others
(II)Category B
B01 Examinations and Diagnosis
B02 Medical Treatment
B03 Endoscopic Treatment
B04 Surgical Treatment
B05 Minimally Invasive Surgery
B06 Chemotherapy and Immunotherapy
B07 Radiation Therapy
B08 Pathology and Basic Research
B09 Case Reports (≤5 Cases)
B10 Postoperative Complications and Perioperative Management
B11 Metabolism, Nutrition, and Palliative Care
B12 Others
(Ⅲ)Medical Department
C01 Gastroenterology
C02 Colorectal Surgery
C03 Proctology
C04 Gastroenterology & Colorectal Surgery
C05 Gastroenterology & Proctology
C06 Colorectal Surgery & Proctology
C07 Gastroenterology, Colorectal Surgery & Proctology
(Ⅳ)Subcategory
D01 Not applicable
D02 Latest Evidence in the Diagnosis and Treatment of Functional Gastrointestinal Disorders
D03 Current Clinical Practice in Chronic Constipation
D04 Endoscopic Resection for Colorectal Polyps
D05 Surveillance after Colorectal Endoscopic Treatment
D06 Colonoscopy and Endoscopic Treatment in Patients on Antithrombotic Therapy
D07 Clinical Application and Latest Data on Colon Capsule Endoscopy
D08 Colorectal Endoscopic Submucosal Dissection (ESD)
D09 Treatment Strategies for cT1bN0M0 Colorectal Cancer
D10 Endoscopic Management in Elderly Patients
D11 Chemoprevention of Colorectal Cancer
D12 Colorectal Cancer Screening
D13 Chemotherapy for Advanced Colorectal Cancer
D14 Cancer Care in Frail Elderly Patients
D15 Medical Treatment of Ulcerative Colitis
D16 Medical Treatment of Crohn’s Disease
D17 Medical Treatment of Inflammatory Bowel Disease
D18 Inflammation-Associated Carcinogenesis
D19 Pouchitis: Pathophysiology and Optimization of Medical–Surgical Collaboration
D20 Colonic Diverticular Disease
D21 Infectious Enterocolitis: Differential Diagnosis, Risk Factors for Severity, and Treatment Strategies
D22 Recent Advances and Clinical Algorithms for Ischemic Colitis
D23 Artificial Intelligence in Endoscopy
D24 Artificial Intelligence in Laparoscopic Surgery
D25 Treatment Outcomes of Colorectal Cancer with Abscess Formation: Surgery First or Systemic Therapy First?
D26 Outcomes of Colorectal Cancer with Pancreatic Invasion
D27 Outcomes of Surgical Resection for Para-aortic Lymph Node Metastases
D28 Surgical Resection for Peritoneal Recurrence after Colorectal Cancer Surgery (Excluding Isolated Ovarian Metastases)
D29 Is Adjuvant Therapy Necessary for pT1N(+) Colorectal Cancer?
D30 Outcomes of Brain Metastases from Colorectal Cancer
D31 Outcomes of Local Therapies Other than Resection for Lung Metastases from Colorectal Cancer
D32 Management of Chylous Ascites after Colorectal Cancer Surgery
D33 Desmoid Tumors Associated with Familial Adenomatous Polyposis
D34 Treatment Outcomes of Fistula-Associated Anal Cancer
D35 Rectal and Anal Canal Cancer with Pagetoid Spread
D36 Treatment Outcomes of Rectal Neuroendocrine Tumors
D37 Treatment Outcomes of Rectal Gastrointestinal Stromal Tumors
D38 Treatment Outcomes of Stercoral Perforation of the Colon
D39 Benefits and Limitations of Neoadjuvant Chemotherapy for Colorectal Liver Metastases
D40 Surgical Treatment for Stoma Prolapse
D41 Treatment Outcomes of Acute Appendicitis with Panperitonitis
D42 Outcomes of Different Reconstruction Methods after Intestinal Resection in Crohn’s Disease
D43 Long-term Outcomes of Surgical Procedures Other than Total Colectomy (Including IRA) for Ulcerative Colitis
D44 Surgical Treatment for Inguinal Lymph Node Metastases
D45 Case Report: Troubleshooting in Robot-Assisted Colorectal Surgery
D46 Case Report: Challenging Surgical Cases
D47 Case Report: Surgical Treatment of Malignancies with Major Vascular Invasion
D48 Case Report: Rare Small Intestinal Diseases Requiring Surgical Treatment
D49 Treatment of Rectal Prolapse and Pelvic Floor Descent: Techniques and Outcomes (Including Rectocele)
D50 Surgical Techniques for Hemorrhoids: Evolving Approaches
D51 Latest Advances in the Treatment of Anal Fissures
D52 Surgical Techniques for Complex Anal Fistulas: Evolving Approaches
D53 Surveillance in Patients with Long-standing IBD: Timing and Methods (Including Anal Lesions and Postoperative Cases)
D54 Management Strategies for Colorectal and Proctology-Focused Medical Institutions in the Current Crisis
D55 The forefront of fecal incontinence treatment
D56 Pregnancy, childbirth and anal diseases
D57 Strategies for the anal diseases in patients receiving anticoagulants and antiplatelet drugs (including perioperative period)
D58 Hospital (clinic) management utilizing AI, ICT, and RPA
D59 Case Report: Severe complications after anorectal surgery
D60 Case Report: Anal lesions that were difficult to diagnose
D61 Irritable bowel syndrome

Contact

If you have any question about the registration, please contact us at the address below.
Secretariat of the 81st Annual Meeting of the Japan Society of Coloproctology.
c/o Convention Linkage, Inc.
Email: reg_jscp81@c-linkage.co.jp