组胺引起被咬部位周围血管扩张。

Histamine cause blood vessel near the bite to enlarge.

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目的探讨脑血管周围间隙(VRS)及其异常扩张的原因和临床意义。

Objective To investigate the reasons of the unusual widening of Virchow-Robin Spaces (VRS) and its clinical significance.

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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.

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