Complex General Surgical Oncology (CGSO) Fellowships
The Society of Surgical Oncology is pleased to report that the Accreditation Council for Graduate Medical Education (ACGME) Board of Directors has approved the program requirements for Complex General Surgical Oncology. All fellowship programs based in the United States listed on the program list below are accredited by the ACGME. These programs are required to comply with the ACGME Program Requirements for Graduate Medical Education in Complex General Surgical Oncology.
The Society of Surgical Oncology has approved all five Canadian programs, which are also accredited by the Royal College of Physicians and Surgeons of Canada. Strict requirements, listed below, must be met to be an SSO-approved training program.
| New Case Minimums: The RC-Surgery of the ACGME has implemented new case number requirements, effective with surgeons who began CGSO fellowship training as of July 1, 2016. These surgeons will be required to have met the new case requirements by the time of their application to the CGSO QE. |
Surgical Oncology Training Program
The Society of Surgical Oncology is pleased to report that the Accreditation Council for Graduate Medical Education (ACGME) Board of Directors has approved the program requirements for Complex General Surgical Oncology. All fellowship programs based in the United States listed on the Program List below are accredited by the ACGME. These programs are required to comply with the ACGME Program Requirements for Graduate Medical Education in Complex General Surgical Oncology.
The Society of Surgical Oncology has approved all three Canadian programs, which are also accredited by the Royal College of Physicians and Surgeons of Canada. The strict requirements outlined below must be met to be an SSO-approved training program.
Complex General Surgical Oncology Curriculum
All approved Complex General Surgical Oncology Fellowship programs, must follow and base their program on the Complex General Surgical Oncology Curriculum.
2027 CGSO Fellowship Match (Positions Start August 2028)
- Applicants participating in the 2027 Surgical Oncology Fellowship Match must submit applications and all required supporting documents through the Electronic Residency Application Service (ERAS). The Society of Surgical Oncology (SSO) does not accept or process fellowship applications.
- Beginning June 5, 2026, applicants must request a Token from the ERAS Fellowships Documents Office (EFDO) before registering on MyERAS and completing the application.
| Request Token | Fellowship Tokens may be requested from Electronic Residency Application Service (ERAS) beginning June 5, 2026. A Residency Token will not allow you to apply for Fellowship programs. Click here to request a Token. |
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| Application Opens | MyERAS will open for fellowship applicants to register and begin working on their applications on November 12, 2026 at 9am ET. MyERAS opens for programs to review applications on December 2, 2026 at 9am ET. |
| Application Deadline | The deadline to submit your application via MyERAS is January 11, 2027. No exceptions will be made. |
| Interviews | Interviews will take place February 1, 2027 – May 28, 2027. CGSO Fellowship Programs may elect to hold either virtual or in person interviews. There should be one declared approach at each institution, either virtual or in-person, and no hybrid combination of both approaches. Programs may make exceptions to accommodate candidates with extenuating circumstances. However, these expectations should not result in a hybrid interview format, with virtual and in-person interviews occurring on the same day. The SSO supports each program’s autonomy to select the interview format that best meets the needs of both the program and its fellowship candidates. |
| Rank Order List Entry (via NRMP) | The Ranking Entry process will be conducted through the National Residency Match Program (NRMP®). All fellowship candidates are required register with the NRMP® (even if you have utilized the R3 system before). Candidates should register through the Registration, Ranking, and Results® (R3®) system, using a unique email, username and password. Registration opens on March 10, 2027 Rank Order List Opens: April 14, 2027 Quota Deadline/Changes Due: May 19, 2027 Rank Order List Deadline: June 2, 2027 |
| Match Results Announced | June 16, 2027 via NRMP |
| Fellowship Start Date | August 1, 2028– Exceptions: University of Ottawa, University of Toronto, University of British Columbia, University of Calgary, University of Montreal, and McGill University start date is July 1. |
QUESTIONS regarding ERAS? Please contact ERAS at myeras@aamc.org or 202-862-6264.
QUESTIONS regarding NRMP? Please contact NRMP at support@nrmp.org or 202-400-2233.
For any other questions please contact the SSO at fellowship@surgonc.org
Fellowship applicants can view the CGSO 2027 Interview calendar to see the dates programs have reserved for interviews as part of the 2027 Match process. Interviews will take place between February 1 and May 28, 2027, and may be conducted in person or virtually, as indicated by each program.
The interview calendar for 2027 will be coming soon. Stay tuned!
Questions can be emailed to fellowship@surgonc.org
Below are some links that you may find helpful throughout the Surgical Oncology Fellowship Match process:
Events and Conferences
Fellows Institute
SSO’s virtual CGSO Board Exam Review Course
List of CGSO Fellowship Programs
Questions? Please contact fellowship@surgonc.org