Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Slightly decreased lung volumes leads to crowding of the bronchovascular structures . Allowing for differences in inspiration , mild cardiomegaly is unchanged . There is no overt pulmonary edema , large pleural effusion , pneumothorax , or lobar consolidation identified .
    OUTPUT:
    
Mild cardiomegaly without overt signs of pulmonary edema . No lobar consolidation .