This issue of Surgical Pathology Clinics, Guest Edited by Dr. Justine A. Barletta, will focus on Endocrine Pathology. Topics include, but are not limited to,�Pitfalls in Thyroid Cytology, Prognostic Parameters in Differentiated Thyroid Carcinomas,�Thyroid Tumors You Don't Want to Miss,�Molecular Alterations in Thyroid Carcinomas, Treatment of Differentiated Thyroid Carcinomas,�Treatment of Aggressive Thyroid Carcinomas, A Guide to Pheochromocytomas and Paragangliomas, A Diagnostic Approach to Adrenocortical Tumors, Treatment of Adrenocortical Carcinoma and Pheochromocytomas, Parathyroid Pathology,�Neuroendocrine Tumors of the GI Tract and Pancreas, Treatment of GI Neuroendocrine Tumors,�and Neuroendocrine Tumors of the Lung.