可见到囊性扩张导管、小叶区伴大量纤维结缔组织（硬化性腺病）增生、间质纤维化。
There are cystically dilated ducts, areas of lobules that are laced with abundant fibrous connective tissue (sclerosing adenosis), and stromal fibrosis.
肌组织可见炎性细胞浸润、肌纤维变性、坏死与再生及结缔组织增生。
In muscle biopsies there are inflammatory cells infiltration, muscle fiber necrosis accompanying regeneration and connective tissue proliferation.
光镜下发现各级冠状动脉壁水肿，外膜及中膜局灶性坏死，外膜及其周围组织淋巴郁滞，后期出现结缔组织增生或纤维化；
Light microscopy showed edema in the arterial wall with local necrosis in the media and adventitia, and dilated lymph vessles and later fibrosis in the adventitia and perivascular tissues.
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