hurthle cell thyroid cancer treatmenthurthle cell thyroid cancer prognosishurthle cell thyroidhurthle thyroid cancerhurthle cell carcinoma thyroidhurthle cell neoplasm of thyroidhurthle cell lesion thyroidhurthle cell thyroid nodulehurthle cells found in thyroid biopsyhurthle cellhurthle cancerhurthle cell cancer survival rate