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).
Your doctor may order a chest X-ray if they suspect that your symptoms have a connection to problems in your chest. Suspicious symptoms may include: chest pain; fever; persistent cough; shortness of breath; These symptoms could be the result of the following conditions, which a chest X-ray can detect: broken ribs