Types: Papillary Thyroid Carcinoma Medullary Thyroid Carcinoma Follicular Thyroid Carcinoma Hurthle Cell Carcinoma Anaplastic Thyroid Carcinoma Suspicious features of thyroid nodules on US: Irregular margins Microcalcifications Taller than wide shape Rim calcifications with small extrusive soft tissue component Extrathyroidal extension Central vascularity Treatment: Treatment typically entails surgery (lobectomy vs. thyroidectomy) Indications for thyroidectomy : History of pr