Endocrine surgery is a surgical specialty that focuses on the management of hormonal disorders arising from abnormally functioning glands. Surgery is performed on endocrine glands to ameliorate its hormonal effect on the body. Almost always, this entails the removal of a tumor arising from an endocrine gland such as the adrenal gland, thyroid gland, parathyroid gland, and pancreas. Procedures commonly performed include parathyroidectomy, thyroidectomy, adrenalectomy, and pancreatectomy.