渗盏周围淋巴血管扩张(pericalyceal lymphangiectasis) 本病又称渗盂周围囊肿(parapelvic cyst)，系渗盂及渗盏周围淋巴管扩张形成。多数无症状，少数可并发梗阻、感染合结石。
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血管增生扩张、血管周围淋巴细胞浸润、出血、坏死、囊性变常见。
Vascular proliferation, angiectasis, perivascular lymphocyte infiltration, hemorrhage, necrosis, cystoid degeneration and calcification were seen frequently.
某些与免疫系统有关的局部或系统组织损伤，血管和淋巴管的异常扩张及通透性等，可能都与NO在局部的含量有着密切的关系。
Some local or systematic tissue damages related to immune system, and abnormal dilatation and permeability of blood vessels and lymphatics may be closely pertinent to the content of local NO.
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