SIO2021 Annual Scientific Meeting: Abstract Submission 

Abstract submission is now closed, and the review process is in progress. Submitters can expect notification of acceptances by mid-December 2020.


Share your research with more than 700 professionals in the global IO community and gain recognition from your peers. There are no restrictions on the number of abstracts you may submit or on the number of submissions you may present. Additionally, SIO does not have a policy that limits prior presentation of data. SIO does not accept trials in progress or case reports.

All accepted abstracts will be featured on SIO-Central and recognized at the 2021 conference. All abstracts will be eligible for Best Abstract awards. Please review the information in the submission system regarding the potential for virtual meeting presentations.

Topics for abstracts include:

  1. Basic Science
  2. Genitourinary
  3. Guidance & Targeting
  4. HCC
  5. Imaging
  6. Liver Metastases
  7. Technology
  8. Thoracic
  9. Education
  10. Other


On rare occasions, presenters scheduled to present their posters fail to show up and have not notified SIO of the change in plans. When presenters do not appear to present their poster, the planning efforts of the Scientific Chair and Program Committee in providing a quality program are diminished significantly, there are significant cost implications, and the audience is unnecessarily disappointed with empty poster boards. Staff will audit all posters for no shows and this may result in ineligibility for future SIO meetings.


Acceptance of the abstract by the review committee obligates the author to be present. If circumstances prevent attendance, the author must arrange for the poster to be presented by a substitute, preferably a co-author. If you wish to withdraw your abstract, you must submit your request in writing by Monday, 4 January 2021  to including the abstract title and first author. Failure to comply may result in ineligibility for future SIO meetings abstract submissions as first author.


For questions regarding the abstract process, you may contact SIO via email or by phone 202-367-1164.