Normal anatomy and histology -- Embryology and developmental lesions -- Thyroid physiology -- Thyroiditis -- Diffuse and nodular hyperplasia -- Other non-neoplastic disorders -- Thyroid tumors: classification and general considerations -- Follicular adenoma -- Hyalinizing trabecular tumor -- Follicular carcinoma -- Papillary carcinoma -- Poorly differentiated carcinoma -- Anaplastic (undifferentiated) carcinoma -- Medullary carcinoma -- Rare primary thyroid epithelial tumors -- Rare primary thyroid nonepithelial tumors and tumor-like conditions -- Primary thyroid lymphomas -- Tumors metastatic to the thyroid -- Gross examination -- Principles of molecular diagnostics in thyroid samples.