Total or near-total removal of the thyroid (thyroidectomy) is the most common treatment for Hurthle cell cancer. During thyroidectomy, the surgeon removes all or nearly all of the thyroid gland and leaves tiny edges of thyroid tissue near small adjacent glands (parathyroid glands) to lessen the chance of injuring them.
https://www.mayoclinic.org/diseases-conditions/hurthle-cell-cancer/diagnosis-treatment/drc-20373577