发现在甲状腺管道样癌中的淀粉样蛋白由降钙素或降钙素原作为前体，而出现在胰岛的淀粉样蛋白可能是由胰岛素而来。

That found in medullary carcinoma of the thyroid appears to have calcitonin or precalcitonin as its precursor, while the amyloid which occurs in the islets of Langerhans may be derived from insulin .

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此肿瘤来源于甲状腺C细胞，因此具有神经内分泌方面的特征，属APUD瘤，例如分泌降钙素。

These neoplasms are derived from the thyroid "C" cells and, therefore, have neuroendocrine features such as secretion of calcitonin.

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