Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright portable chest radiograph obtained . Lung volumes are low and the patient is rotated to the right , which limits the evaluation . There is bibasilar atelectasis with probable small bilateral pleural effusions . The heart appears enlarged , though this could be in part magnified due to technique . Possibility of pneumonia at the lung bases can not be excluded , though atelectasis is favored . No pneumothorax is seen . Mediastinal contour is difficult to assess . No bony abnormalities .
    OUTPUT:
    
Bibasilar atelectasis , difficult to exclude an early pneumonia . Small bilateral pleural effusions redemonstrated .