Endocrine oncology is the speciality of medicine that deals with tumours caused by thyroid hormones, often known as endocrine neoplasia. There are two types of endocrine neoplasia; both are genetic abnormalities that can be passed down from generation to generation. The first kind is called as warmers disorder, while the second type is known as pheochromocytoma or straightforward condition, both of which resulted in medullary thyroid cancer.