Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Slightly limited evaluation due to detector plate artifact . Heterogeneous retrocardiac opacity noted . No pleural effusion or pneumothorax . Mild cardiomegaly is noted . Mediastinal contour and hila are otherwise unremarkable .
    OUTPUT:
    
Findings suspicious for left lower lobe pneumonia . Clinical correlation recommended .