Interstitial pneumonias An acute reticular pattern is most frequently caused by interstitial edema due to cardiac heart failure. The other cause is interstitial pneumonia: Viral PCP Mycoplasma pneumonia. This patient presented with a nonproductive cough and some fever. This was a PCP-infection as a first manifestation of AIDS. #Clinical #Radiology #CXR #Acute #Interstitial #Pneumonia #PJP #RadiologyAssistant
