Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Lower lung volumes seen on the current exam . Indistinct pulmonary vasculature could be due to low lung volumes with component of vascular congestion is also possible . Linear opacity in the left lower lung suggestive of atelectasis . There is no confluent consolidation . The cardiomediastinal silhouette is within normal limits . Again seen is a hiatal hernia . No acute osseous abnormality detected .
    OUTPUT:
    
Indistinct pulmonary vasculature markings , potentially due to atelectasis and low lung volumes with component of vascular congestion is also possible .