Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is top normal in size . Pulmonary vascular congestion without overt pulmonary edema . There is a sigmoidal shaped opacity projecting from the left heart border ending in a triangular opacity projecting over the fourth rib anteriorly in the left lung . No pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Opacity projecting over the left mid lung could reflect infection or infarction . 2 . Pulmonary vascular congestion without overt edema .