
Developing Recommendations
SSO develops recommendations as an organization.

Collaborating with Other Organizations
SSO collaborates with other organizations to develop recommendations.

Providing Experts to External Projects
SSO provides surgical oncology experts for others’ recommendation projects.

Endorsing Work of Other Organizations
SSO endorses recommendations of collaborative work and/or the work of other organizations.
SSO has recommendations for the following disease sites.
Multispeciality
Choosing Wisely: SSO Five Things Physicians and Patients Should Question (2021)

Breast
Society of Surgical Oncology Breast Disease Site Working Group Statement on Contralateral Mastectomy: Indications, Outcomes, and Risks

Germline Testing in Patients with Breast Cancer: ASCO-Society of Surgical Oncology Guideline

Editorial-Updated Guidelines on When to Consider Germline Testing for Patients with Breast Cancer

Partial Breast Irradiation for Patients with Early-Stage Invasive Breast Cancer or Ductal Carcinoma in Situ: An ASTRO Clinical Practice Guideline

Editorial-Surgical Perspectives on the Updated ASTRO Guideline on Partial Breast Irradiation for Breast Cancer

Management of Hereditary Breast Cancer: American Society of Clinical Oncology, American Society for Radiation Oncology, and Society of Surgical Oncology Guideline

Editorial-Management of Hereditary Breast Cancer: ASCO, ASTRO and SSO Guideline

Society of Surgical Oncology-American Society for Radiation Oncology-American Society of Clinical Oncology Consensus Guideline on Margins for Breast-Conserving Surgery With Whole Breast Irradiation in Ductal Carcinoma In Situ

Society of Surgical Oncology-American Society of Radiation Oncology Consensus Guideline on Margins for Breast-Conserving Surgery With Whole-Breast Irradiation in Stages I and II Invasive Breast Cancer

In Development
Postmastectomy Radiotherapy: ASTRO-ASCO-SSO Guideline
International Consensus Guideline for 2nd Ipsilateral Breast Cancer Event (2nd iBCE) Management
SSO/ASBrS Collaborative Review: Advantages of Neoadjuvant Systemic Therapy
Colorectal
ASTRO Guideline on Radiation Therapy for Rectal Cancer

Radiation Therapy for Anal Squamous Cell Carcinoma: An ASTRO Clinical Practice Guideline

Gastrointestinal
D2 Lymphadenectomy for Gastric Cancer: Advancements and Technical Considerations (2024)

In Development
ASTRO Radiotherapy for Gastric Cancer
Hepato-Pancreato-Biliary
External Beam Radiation Therapy for Primary Liver Cancers: An ASTRO Clinical Practice Guideline

Editorial-External Beam Radiation Therapy for Primary Liver Cancers: An ASTRO Clinical Practice Guideline-A Surgical Perspective

Radiation Therapy for Pancreatic Cancer: Executive Summary of an ASTRO Clinical Practice Guideline

In Development
Joint Consensus Guideline with NANETS: Surgical and Liver-directed Management of Neuroendocrine Liver Metastasis
Melanoma
ASTRO Guideline on Definitive and Postoperative Radiation Therapy for Basal and Squamous Cell Cancers of the Skin
