EPAs for Complex General Surgical Oncology
Entrustable Professional Activities (EPAs) for complex general surgical oncology launched on August 1, 2025.


The Complex General Surgical Oncology EPAs
12 EPAs for the assessment of CGSO trainees
There are a total of 12 core EPAs that will be evaluated for complex general surgical oncology (CGSO). Read all of the CGSO EPAs and the full descriptions here.
- Breast cancer
- Colon cancer
- Gastric and esophageal cancer
- Liver or biliary mass
- Melanoma and advanced cutaneous malignancies
- Other gastrointestinal tumors
- Pancreatic lesion or cancer
- Peritoneal surface malignancy
- Anal and rectal cancer
- Soft tissue sarcoma
- Patient being treated with palliative intent at end of life with limited treatment options
- Thyroid and parathyroid tumors
* The complex general surgical oncology EPAs are currently in a review process and are subject to change.
UpcominG Webinar
COMPLEX GENERAL Surgical Oncology EPAs for Trainees
How will CGSO EPAs benefit trainees?
Hear from directors of the Complex General Surgical Oncology Board of the ABS as they discuss how complex general surgical oncology EPAs will benefit trainees by providing more timely feedback than the current model.
Complex General Surgical Oncology EPAs are launching soon
Why are EPAs being implemented?






EPAs and Complex General Surgical Oncology Trainees
An EPA composite profile will be required during QE application
Beginning in 2028, all applicants to the CGSO Qualifying Exam (CGSO QE) will be required to turn in a composite profile across all EPAs when they apply for the exam. In order to assist trainees in developing a robust composite profile, every resident should be assessed on every rotation.
All program faculty should be trained to function as assessors to promote reliability and validity of the assessment. The use of EPAs for trainees at all PGY-levels to promote consistent habits of meaningful assessment and feedback, and to provide other assessment economies, is strongly encouraged as a best practice strategy.
For more details and information about EPA development, implementation, evaluation, and more, please review the following resources


Using EPAs to Support Struggling Residents Infographic


How to Use EPAs to Take Charge of Your Training Infographic


Complex General Surgical Oncology EPAs Anatomy Visual
ABS EPA Grand Rounds presentations for complex general surgical oncology
Programs can access a PDF of the slides used in this Grand Rounds presentation here.
Prepare for the launch of Complex General Surgical Oncology EPAs
What members of the CGSO community are saying
Why is the change to EPAs needed and what do these changes mean for trainees and faculty? Members of the Complex General Surgical Oncology Board of the ABS share their views on why EPAs are a valuable education tool.
Program Resources
Resources for programs to utilize prior to and during EPA implementation
The ABS team has produced a full suite of resources for programs to use during EPA implementation, which includes documents and guides, training videos, pre-recorded webinars, presentations, and more. Please note that any resource documents linked will be updated regularly.
Performing assessments in the app
Complex general surgical oncology EPAs will be assessed in the ABS EPA App™ for surgical specialties
This step-by-step video walks the viewer through how to create a new assessment using the ABS EPA App™ that is powered by Firefly.


EPAs by the numbers
The implementation of general surgery EPAs began on July 1, 2023. Since then, trainees and staff have been using the ABS EPA app to create and complete assessments. The data below shows the most current EPA numbers. (Data as of December 31, 2023.)
