Lobar pneumonia On the chest x-ray there is an ill-defined area of increased density in the right upper lobe without volume loss. The right hilus is in a normal position. Notice the air-bronchogram (arrow). In the proper clinical setting this is most likely a lobar or segmental pneumonia. However if this patient had weight loss or long standing symptoms, we would include the list of causes of chronic consolidation. This was an acute lobar pneumonia caused by Streptcoccus pneumoniae. #Clinical #Radiology #CXR #AirBronchogram #RUL #Lobar #Pneumonia #RadiologyAssistant
