system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
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?
assistant
The correct answer is  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.