id author title date pages extension mime words sentences flesch summary cache txt cord-310840-h49dx92d Eslamy, Hedieh K. Pneumonia in Normal and Immunocompromised Children: An Overview and Update 2011-09-30 .txt text/plain 8279 488 33 The role of imaging is to detect the presence of pneumonia, and determine its location and extent, exclude other thoracic causes of respiratory symptoms, and show complications such as effusion/empyema and suppurative lung changes. The role of imaging, including chest radiographs, ultrasound (US) and computed tomography (CT), is to detect the presence of pneumonia, determine its location and extent, exclude other thoracic causes of respiratory symptoms, and show complications such as parapneumonic effusion/ empyema and suppurative lung complications. CT is often used to further evaluate: (1) suppurative lung complications and to differentiate these from parapneumonic effusion/empyema; (2) patients with recurrent or chronic pneumonia and concern for an underlying lesion; and (3) immunocompromised children with noncontributory or confusing chest radiographs and clinical findings that could be secondary to lung infection. The chest radiograph of acute focal pneumonia usually shows a dense, typically more peripheral airspace opacity, which may appear segmental, lobar, or spherical ( Figs. ./cache/cord-310840-h49dx92d.txt ./txt/cord-310840-h49dx92d.txt