Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate cardiomegaly with mild central vessel congestion . Right lower lung opacification likely represents a combination of elevated hemidiaphragm , atelectasis and reported hemothorax . Minimal blunting of the left costophrenic angle may reflect small pleural effusion versus scarring . No pneumothorax identified , though there is subcutaneous gas within the right chest wall surrounding a right chest tube .
    OUTPUT:
    
Right lower lung opacification , likely combination of elevated right hemidiaphragm , atelectasis , and reported hemothorax . No pneumothorax . Possible small left pleural effusion .