Polycystic change的用法和樣例：
例句
- The iliac hyperdense line on the pelvic plain film is probably a characteristic change of GMC.
髖骨緻密線可能是臀肌攣縮的一種影像學上的特徵性改變。 - This is a more pronounced reactive change in a lymph node, with a larger follicle and germinal center containing macrophages.
更明顯的淋巴結的反應性改變，有較大的淋巴濾泡和包含巨噬細胞的生髮中心。
