This tumor is a component of Sipple's syndrome, which is characterized by medullary carcinomaofthethyroid, pheochromocytoma, and hyperparathyroidism.
该肿瘤是赛普尔综合症组成之一，其特征是甲状腺髓样癌、嗜铬细胞瘤和甲状旁腺功能亢进。
2
That found in medullary carcinomaofthethyroid appears to have calcitonin or precalcitonin as its precursor, while the amyloid which occurs in the islets of Langerhans may be derived from insulin .