Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates low lung volumes with resulting bronchovascular crowding . There is atalectasis at the right lung base . There is mild vascular congestion without frank pulmonary edema . The heart is mildly enlarged . The thoracic area is somewhat tortuous . No pneumothorax or significant pleural effusion .
    OUTPUT:
    
Right basalar atelecatasis and mild vascular congestion .