患者男性，70岁。心源性猝死复苏成功后3小时出现呼吸困难，即刻行床旁胸部X线片，示双下肺多发斑片状阴影。最可能的诊断是(    )

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• 1慢性阻塞性肺疾病患者，HRCT扫描双下肺多发斑片状磨玻璃密度（GGO)，呈马赛克样分布，GGO内肺小动脉直径增粗，提示(    )

  A.GGO区域血流减少

  B.GGO区域间质增生

  C.GGO区域通气大致正常

  D.GGO区域有轻度渗出改变

  E.GGO区域肺组织膨胀不全

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• 2慢性阻塞性肺疾病患者，HRCT扫描双下肺多发斑片状密度减低，呼气期更为明显，提示(    )

  A.该区域血流减少

  B.该区域间质增生

  C.该区域通气大致正常

  D.该区域空气潴留

  E.该区域肺组织膨胀不全

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• 3儿童前纵隔最常见占位性病变是(    )

  A.胸腺瘤

  B.畸胎瘤

  C.支气管囊肿

  D.肠源性囊肿

  E.淋巴瘤

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• 4诊断肺水肿最确切的根据是(    )

  A.肺纹理模糊

  B.肺内多发实变短时间内消失

  C.K氏线

  D.支气管壁增厚

  E.中内带的实变

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• 5估计胸腔积液为中等量，正位胸部X线片上可见(    )

  A.肋膈角变钝

  B.积液面超过整个膈面

  C.积液面内上缘超过下肺门角水平

  D.积液面内上缘超过上肺门角水平

  E.积液面达肺尖

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• 6Air-space disease may be indicated on plain film by(    )

  A.“bat-wing” pattern of dense infiltrates，with an air bronchogram sign

  B.“honeycomb lung”

  C.Kerley’s lines

  D.a meniscus sign

  E.bronchiectasis

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• 7Lobar enlargement，an air bronchogram sign，and a bulged fissure (away from the involved lobe)，are radiologic indications of(    )

  A.lobular pneumonia

  B.atelectasis

  C.lymphangitic spread of metastatic lesions

  D.interstitial bacterial pneumonia

  E.lobar pneumonia

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• 8Atelectasis is(    )

  A.punctured lung

  B.an overinflated lung

  C.a collapsed，airless lung

  D.a lung with fluid-filled air spaces

  E.a lung shifted out of its normal position

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• 9Calcification of a pulmonary nodule indicates that it is most likely(    )

  A.primary malignant tumor

  B.a benign lesion

  C.a metastatic lesion

  D.a cystic lesion

  E.a neoplasm

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• 10An air bronchogram sign is(    )

  A.a normal finding caused by air-filled bronchi

  B.an abnormal finding indicating atelectasis

  C.an abnormal finding indicating bronchial displacement

  D.an abnormal finding indicating dense infiltrate within the lung parenchyma

  E.an abnormal finding indicating emphysema

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