Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are stable with increased prominence of linear atelectasis the left lung base . The vascular pedicle has decreased in size and there is slightly decreased pulmonary vascular congestion although mild interstitial edema remains . No pleural effusion , pneumothorax , or focal consolidation .
    OUTPUT:
    
Increased atelectasis and mild slightly improved pulmonary edema , unlikely to contribute to hypoxia .