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Pathology General pathology 6983c7f3

A 75-year-old lady is diagnosed of having a thyroid malignancy. Her serum calcium is low. What is the most likely explanation?

A
She has developed metastasis of the parathyroid
B
She has follicular carcinoma
C
She has papillary carcinoma
D
She has medullary carcinoma
High-Yield Explanation
It originates from parafollicular cells that produce calcitonin. 3rd most common thyroid cancer. Calcitonin-highly sensitive marker. For screening. Differential diagnosisi. Prognosis. Assessment of treatment response.

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