Renovated Prediction Model for Difficult Transoral and Submental Endoscopic Thyroidectomy

This study aims to build a better prediction model to identify which patients are good candidates for a minimally invasive thyroid surgery done through the mouth or under the chin (transoral or submental endoscopic thyroidectomy), avoiding a visible scar on the neck. **You may be eligible if...** - You have a confirmed diagnosis of differentiated thyroid cancer with a tumor no larger than 4 cm - You have a benign (non-cancerous) thyroid nodule no larger than 6 cm - There is no sign of cancer spread to nearby lymph nodes or distant organs **You may NOT be eligible if...** - Your lymph nodes in the neck are fused or fixed - You have had previous neck surgery or neck radiation - Your vocal cords are not moving properly before surgery - Your thyroid nodule is suspicious for a specific aggressive cancer type (tall cell papillary thyroid cancer) Talk to your doctor to see if this trial is right for you.