Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . There is increased parenchymal opacity in the left lung compared to the right . Subtle right basilar opacity may also be present , although may be due to overlying soft tissues . Cardiac silhouette is top normal in size for technique and positioning . Retrocardiac opacity seen medially could represent hiatal hernia , but is not well assessed . There is no large effusion . No acute osseous abnormality is identified .
    OUTPUT:
    
Left mid-to - lower lung opacities and subtle right basilar opacity most suspicious for pneumonia in the proper clinical setting . Recommend repeat after treatment including PA and lateral views to document resolution . Additional retrocardiac opacity may represent a hiatal hernia , but can be further assessed at time of two view study .