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1·Follicular carcinoma accounts for about 15% of thyroid cancers and is more common in the elderly.

滤泡状癌约占甲状腺癌的15%，老年人较常见。

2·It is sometimes difficult to tell a well-differentiated follicular carcinoma from a follicular adenoma.

有时很难区分分化好的滤泡状腺癌与滤泡状腺瘤。

3·Except for the medullary carcinoma, most of the thyroid carcinoma results from follicular epithelial cells.

除髓样癌外，绝大多数甲状腺癌起源于滤泡上皮细胞。