Thyroid cancer is occasionally associated with hyperthyroidism. Papillary thyroid carcinoma is the most frequently reported histologic type followed by follicular thyroid carcinoma. Medullary ...

After extensive surgery, calcitonin levels plummet in most patients with medullary thyroid carcinoma (MTC) without lymph node metastases. Calcitonin, however, remains elevated in two-thirds of ...

FNA is preferred over thyroid scan or ultrasonography as the initial diagnostic test for thyroid nodules. However, a previous ultrasound may aid the physician performing the aspiration.