Contouring for Sarcomas

This contouring activity reviews (1) indications for radiation therapy for soft-tissue sarcoma (STS) in adults; (2) dosing and contouring rationale for STS in adults; and (3) toxicity management and expectations for radiotherapeutic management for STS in adults.

This activity includes a recorded didactic background lecture and case/contour review. Participants do not have access to the online contouring platform for the practice case covered in the presentation.

Cases Covered:

Pre-op
70-year-old female from China who presented with recurrent sarcoma after 3 operations in the left thigh for sarcoma. Her first operation was an unplanned excision in 2020 (4 years prior to current presentation) of what was called a low grade spindle cell sarcoma. The size was unclear but appeared to be less than 5 cm. She had wide re-excision with no radiation therapy. In October of 2023 a new 2-3 cm mass was noted in the proximal anterior thigh, distinct from the site of her prior sarcoma. A wide excision was performed in December 2023. Pathology indicated high grade sarcoma and margin status was not commented upon. Patient refused post-operative MRI but agreed to ultrasound which showed no obvious residual tumor. Staging work up was negative for metastases. Staging: T1N0M0G3, Stage II.

Post-Op
78-year-old female presents with a painless but rapidly enlarging mass in her left medial thigh. MRI femur/thigh revealed a 3.2 x 2.4 x 4.6 cm mass. Core biopsy was performed and revealed undifferentiated pleomorphic sarcoma within the sartorius muscle. CT chest was negative for metastases. Staging: T1N0M0, G3, Stage II. Case note: The knee joint is not anatomically relevant for this case, but is included for discussion of joint contouring approaches as it is relevant for many extremity cases.

This activity is available from July 31, 2024, through 11:59 p.m. Eastern time on July 30, 2026.

The content was originally presented and recorded at the 2024 ASTRO Annual Refresher Course.

Target Audience

The meeting is designed to meet the interests of practicing radiation oncologists, radiation oncology residents, medical and clinical physicists, radiation therapists, radiation dosimetrists, nurses and all other health professionals involved in the field of radiation oncology.

Learning Objectives

Upon completion of this activity, participants should be able to:

  • Apply the contouring principles for soft tissue sarcoma in adults.
  • Identify dosing principles for pre operative and post operative RT for STS in adults
  • Describe basic indications for RT for STS in adults.
Course summary
Available credit: 
  • 1.25 AMA PRA Category 1 Credit™
    The American Society for Radiation Oncology (ASTRO) is accredited by the Accreditation Council for Continuing Medical Education for physicians. ASTRO designates this Enduring material for a maximum of 1.25 AMA PRA Category 1 Credit™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.
  • 1.25 Certificate of Attendance
    This activity was designated for 1.25 AMA PRA Category 1 Credit™.
Course opens: 
07/31/2024
Course expires: 
07/30/2026
Cost:
$149.00
Rating: 
0

B. Ashleigh Guadagnolo, MD, MPH, is employed by MD Anderson Cancer Centerand received travel compensation from CTOS and ESMO.

The person(s) above served as the developer(s) of this activity. Additionally, the ASTRO Annual Refresher Course Program Committee and the ASTRO Education Committee had control over the content of this activity.

All relevant financial relationships have been mitigated.

Disclosure link: 
ASTRO Education Committee

The American Society for Radiation Oncology (ASTRO) is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

Available Credit

  • 1.25 AMA PRA Category 1 Credit™
    The American Society for Radiation Oncology (ASTRO) is accredited by the Accreditation Council for Continuing Medical Education for physicians. ASTRO designates this Enduring material for a maximum of 1.25 AMA PRA Category 1 Credit™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.
  • 1.25 Certificate of Attendance
    This activity was designated for 1.25 AMA PRA Category 1 Credit™.

Price

Cost:
$149.00
Please login or register to take this course.
Course Fees:
ASTRO members must log in to the ASTRO website to view and receive the member rate.
  • Nonmember: $149
  • Member: $99
  • Member-in-Training: $49
  • Postdoctoral Fellow Member: $49
  • Sudent/Graduate Student/PGY-1 Member: $49

If you are an ASTRO member from a low or lower-middle income country, as identified by the World Bank, you can receive a 50% discount off your corresponding registration for this activity. Please email [email protected] to inquire about the discount.

Policies:
No refunds, extensions, or substitutions will be made for those participants who, for any reason, have not completed the activity by the expiration date.

Participants using ASTRO Academy activities to satisfy the requirement of a Continuing Certification (MOC) program should verify the credit number and type and availability dates of any activity before making a purchase. No refunds, extensions, or substitutions will be made for participants who have purchased activities that do not align with their MOC requirement.

The activity and its materials will only be available on the ASTRO website until July 30, 2026, regardless of purchase date. At the expiration of the activity, participants will no longer have access to the activity or its materials. ASTRO reserves the right to remove an activity before its expiration date.

Required Hardware/software

One of the two latest versions of Google Chrome, Mozilla Firefox, Internet Explorer or Safari.