Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low resulting in bronchovascular crowding . Additionally , there is patchy opacity within the right lung base which appears to project over the supine and lateral view , findings concerning for pneumonia and / or pulmonary vascular congestion . No overt interstitial edema is identified . There is no pleural effusion . The thoracic aorta remains tortuous . Mediastinal , hilar , and cardiac contours appear within normal limits . There is no pneumothorax .
    OUTPUT:
    
Right basilar opacity may reflect early pneumonia and / or pulmonary vascular congestion .