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What is A well differentiated follicular carcinoma of thyroid can be best differentiated from a follicular adenoma by and explain in detail?
A well differentiated follicular carcinoma of thyroid can be best differentiated from a follicular adenoma by capsular invasion/ vascular invasion. This is not made out in FNAC and hence FNAC is not very useful. USG can make out this differentiating feature of follicular carcinoma. Reference : page 482 SRB's manual of surgery 5th edition