每个滤泡含有一个大量快速增殖的B细胞和吞噬细胞的构成的生发中心。
Each follicle contains a germinal center populated by rapidly proliferating B cells and macrophages.
目的：探讨增殖细胞核抗原(pcna)表达与甲状腺滤泡性肿瘤间的关系。
Objective: To study the relationship between the expression of proliferative cell nuclear antigen (PCNA) and follicular tumors of thyroid.
多结节性甲状腺肿低倍镜图像。滤泡不规则增大，扁平上皮组织处于非增殖状态。
The follicles are irregularly enlarged, with flattened epithelium, consistent with inactivity, in this microscopic appearance at low power of a multinodular goiter.
结论HT与甲状腺癌发生关系密切，HT中甲状腺滤泡上皮增殖活跃，易于癌变。
Conclusions HT is closely associated with thyroid cancer. Active hyperplasia is showed and could malignant transformation in thyroid follicular epithelial cell in HT.
与健康动物相比，胸腺体积与重量增大4.5倍以上，脾脏滤泡增大1.5倍以上。以及淋巴结的淋巴小结扩大均为实质性增殖的结果。
In comparison with normal healthy animals, the size and weight of the thymus increased to over 45 times, follicles of the spleen enlarged more than 1.5 times.
与健康动物相比，胸腺体积与重量增大4.5倍以上，脾脏滤泡增大1.5倍以上。以及淋巴结的淋巴小结扩大均为实质性增殖的结果。
In comparison with normal healthy animals, the size and weight of the thymus increased to over 45 times, follicles of the spleen enlarged more than 1.5 times.
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