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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.
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A well differentiated thyroid follicular carcinoma is best differentiated from a follicular adenoma by:
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The correct answer is  Follicular adenoma can be differentiated from follicular carcinoma on the basis of invasion of capsule or pericapsular blood vessel. Follicular adenoma do not invade capsule or peri capsular blood vessel. Ref: Bailey and Love Sho Practice of Surgery 24th Edition, Page 797, 799; Schwaz 8th Edition, Page 420; Robbins 7th Edition, Page 1180, 1181