Book excerpt: Diagnostic Pathology and Molecular Genetics of the Thyroid, Second Edition, offers a comprehensive overview of the diagnostic surgical pathology, cytopathology, immunohistochemistry and molecular genetics of the thyroid diseases, including neoplastic and non-neoplastic conditions. The book provides a detailed description of the surgical pathology of thyroid diseases side by side with major advances in immunohistochemistry and molecular genetics that can be used in evaluating thyroid tumors and non-neoplastic diseases.