Risk Stratification and Clinical Factors Guiding Initial DTC Treatment Decisions

In this segment, Dr. Greg Randolph explains how clinicians evaluate patients with advanced differentiated thyroid cancer (DTC) to guide initial treatment decisions. He emphasizes that the most critical issue is determining the extent of locoregional invasion, specifically tumor location, visceral involvement (trachea, larynx, esophagus, great vessels), and neural involvement.

He highlights axial three-dimensional CT imaging with contrast as the cornerstone for assessing structural invasion, mediastinal extension, and nodal distribution. Equally important is laryngeal examination, which helps infer recurrent laryngeal nerve involvement, one of the most commonly invaded structures in extra-thyroidal disease. Because the nerve cannot be directly visualized on imaging, clinicians must integrate radiographic findings with vocal cord function. These assessments are essential for surgical planning: they help determine whether a nerve must be sacrificed, how to preserve the contralateral nerve to avoid tracheotomy, and how to safely balance oncologic control with functional outcomes in patients with advanced DTC.