24.图示白箭头指向肺上叶脓肿形成处。脓性内容物流走，留下空腔表明其为液化性坏死。胸透时，脓肿中央的液化区可出现液平面。
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24.The white arrows mark areas of abscess formation in the upper
lobe of this lung. The liquefactive necrosis of an abscess is apparent, because the
purulent contents are draining out to leave a cavity. On a chest radiograph, the
liquefied central contents of an abscess can appear as an "air-fluid
level".
24.图示白箭头指向肺上叶脓肿形成处。脓性内容物流走，留下空腔表明其为液化性坏死。胸透时，脓肿中央的液化区可出现液平面。
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