Surgery for Thyroid Cancer With or Without Autofluorescence to Prevent Hypoparathyroidism

This study is comparing thyroid cancer surgery with and without a special imaging technique called autofluorescence to help surgeons identify and protect the parathyroid glands. Accidentally removing or damaging these glands during thyroid surgery can cause low calcium levels afterward, so this technique aims to prevent that complication. **You may be eligible if...** - You are over 18 years old - You have a suspected or confirmed diagnosis of thyroid cancer - You are scheduled for a total thyroidectomy (full removal of the thyroid) or completion thyroidectomy - Your calcium levels are normal before surgery **You may NOT be eligible if...** - You are also having parathyroid surgery at the same time - You are currently taking active vitamin D supplements (not regular vitamin D) - Your kidney function is severely reduced (eGFR under 30) Talk to your doctor to see if this trial is right for you.