Endocrine and breast surgery is a specialty that diagnoses and surgically treats diseases of the breast and endocrine glands (like the thyroid, parathyroid, and adrenal glands). It includes procedures for both malignant (cancerous) and benign (non-cancerous) conditions, such as breast lumpectomies or mastectomies for breast cancer, and thyroidectomies for thyroid tumors. Specialists use various techniques, from minimally invasive surgery to more complex open procedures, and often work with other specialists to manage patient care.