PORT
Also written as: PORT — Post-operative radiation therapy
Post-operative radiation therapy delivered after surgical resection of the primary tumor.
Full Definition
Post-operative radiation therapy (PORT) is radiation treatment administered following surgical resection of the primary tumor and regional lymph nodes. The purpose of PORT is to eliminate microscopic residual disease in the tumor bed and regional lymph node areas that may not have been completely removed by surgery. The decision to recommend PORT is based on pathologic findings including tumor size, nodal involvement, margin status, and other high-risk features. PORT is typically initiated 4-8 weeks after surgery to allow adequate wound healing while minimizing the risk of local recurrence. The radiation fields and dose are tailored to the specific tumor type and pathologic risk factors.
Usage
Usage note: Always specify the indication for PORT and timing relative to surgery.
In Context
- "PORT was recommended based on positive lymph nodes and close margins." — Radiation oncology consultation
- "The patient completed PORT six weeks after surgical resection." — Follow-up visit note