Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal view of the chest was obtained portably . Low lung volumes result in bronchovascular crowding . There is no focal consolidation or pneumothorax . Blunting at the left costophrenic sulcus is unchanged and may be due to a small effusion or pleural thickening . Moderate cardiomegaly is unchanged . The mediastinal silhouette with an enlarged aorta is stable . A left humeral head fracture is unchanged .
    OUTPUT:
    
No pneumonia or edema .