Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is noted . There is no focal consolidation , effusion or pneumothorax . No convincing signs of pulmonary edema . Linear density in the left mid lung likely represent subsegmental atelectasis . The aorta is somewhat unfolded with faint calcifications along the aortic knob . The imaged osseous structures are intact . A mild scoliosis is noted .
    OUTPUT:
    
Cardiomegaly without definite signs of pneumonia or CHF .