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What is A patient presented with neck swelling. Cytology showed showed parafollicular cells along with clusters of plasmacytoid and few spindle shaped cells. What investigation should be done to follow up the patient? and explain in detail?
Ans. (a) CalcitoninCytology showed showed parafollicular cells along with clusters of plasmacytoid and few spindle shaped cells are suggestive of medullary ca thyroid and so should be followed up by its tumor marker calcitonin.