From: Calcitonin estimation in patients with nodular goiter and its significance for early detection of MTC: european comments to the guidelines of the American Thyroid Association
1.“Small cells” lung carcinoma*
2. Various neuroendocrine tumors*
3. Chronic renal failure *
4. Pernicious anemia*
5. Zollinger’s syndrome*
6. Pancreatitis*
7. Lymphocytic thyroiditis**
8. Micropapillary thyroid carcinoma**