有的肿块长期静止不变，有的体积增大或溃破。
Some tumors remain stationary indefinitely, whereas others increase in size, or break down.
周围动脉瘤有诸多并发症，其中以溃破大出血最为严重（22例）。
Rupture of aneurysm and massive kaemomhage is the most serious complications (22 cases in the report).
今天，有50多万人受到雅司病感染。 雅司病是由螺杆菌引起，病菌通过患者皮肤上的伤口侵入，导致肿块，溃破后形成溃疡，遍布患者身体。
Today, more than 500 000 are afflicted by yaws, which is caused by a spiral bacteria that penetrates through a cut in the skin resulting in bumps that burst, ulcerate and spread over the body.
今天，有50多万人受到雅司病感染。 雅司病是由螺杆菌引起，病菌通过患者皮肤上的伤口侵入，导致肿块，溃破后形成溃疡，遍布患者身体。
Today, more than 500 000 are afflicted by yaws, which is caused by a spiral bacteria that penetrates through a cut in the skin resulting in bumps that burst, ulcerate and spread over the body.
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