A well Differenciated follicular carcinoma of thyroid can be best Differentiated from a Follicular Adenoma by
FNAC is is of limited value in the preoperative diagnosis of follicular thyroid cancer. Diagnosis of follicular thyroid cancer requires demonstration of cellular invasion of the capsule or vascular or lymphatic channels. Source : Sabiston 20th edition Pg : 905
Huhle cell change
Lining of tall columnar and cuboidal cells
Vascular invasion
Nuclear features
Endocrinology and breast