Ontology highlight
ABSTRACT: Importance
Clear surgical margins reduce the risk of local recurrence, improve survival, and determine decision-making with regard to adjuvant treatment of squamous cell carcinoma of the head and neck (SCCHN). However, the definitions of clear, close, or positive surgical margins vary in both the literature and in practice.Objective
To examine whether the association between surgical margin distance and survival varies by primary tumor site.Design, setting, and participants
This was a secondary analysis of a multi-institutional, multinational randomized clinical trial. The trial enrolled patients from January 22, 2007, to March 29, 2013, with stage II to IVA resected SCCHN with extranodal extension (ENE) or positive margins (<5 mm from invasive tumor to the resected
SUBMITTER: Sunkara PR
PROVIDER: S-EPMC9951098 | biostudies-literature | 2023 Apr
REPOSITORIES: biostudies-literature