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What is FNAC is least diagnostic in which thyroid carcinoma: and explain in detail?
Ans. is 'c' Follicular CaFNAC is the best investigation for the diagnosis of all thyroid carcinomas except follicular carcinoma.It cannot differentiate b/w follicular carcinoma and follicular adenoma. The definitive diagnosis of carcinoma is made when capsular and vascular invasion by the carcinoma is revealed.