Files stored in the UPD format are more commonly known as program update information files. These .upd files are text documents, and its content can be viewed by any text editing or word processing application. Users of Microsoft Windows-based systems can use the Microsoft Notepad application to open and edit these .upd text documents.
Croup (acute laryngotracheobronchitis) on X-ray with steeple sign. Croup, also called acute laryngotracheobronchitis is caused by viral infection of the upper airway usually parainfluenza virus or respiratory syncytial virus (RSV).
chest X-ray or: â¢ the presence of thickened bronchial walls seen as parallel, linear opacities radiating from the hilum with lack of convergence more peripherally â¢ dilated airways seen end on â they appear as thick- or thin-walled ring shadows CME Nov/Dec 2007 Vol.25 No.11 Table II. Causes of pulmonary nodules