Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The right hemidiaphragm is mildly elevated . On the lateral view , there is opacity projecting over the lower spine , which raises concern for a possible underlying consolidation . No pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Posterior basilar opacity , best seen on the lateral view raises concern for underlying consolidation , which may be due to infection and / or aspiration . Recommend followup to resolution .