  Several black, branching structures are seen in this upper lobe pneumonia (solid white arrows) that represent typical air bronchograms seen centrally in airspace disease in this patient with pneumococcal pneumonia. The disease is homogeneous in density, except for the presence of the air bronchograms. Because this is airspace disease, its outer edges are poorly marginated and fluffy (dotted white arrow). 左肺上叶肺炎，可见数条透光的分枝状结构（白色实心箭头所示），代表典型的空气支气管征。见于中心型肺空腔疾病，该患者为肺炎球菌肺炎。除了空气支气管征，病灶密度均匀。由于是空腔病变，所以病灶轮廓不清，边缘模糊（白色虚线箭头所示）。 Notes： 1. pneumococcaladj.肺炎球菌的 来源：每天朗读一段医学影像学英语文章 圈主 深圳市人民医院放射科副主任医师杨敏洁 |
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