Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes cause bronchovascular crowding . Moderate dextroscoliosis of the thoracic spine is unchanged . Indistinct opacity at the left costophrenic angle most likely represents atelectasis . A small focal consolidation can not be entirely excluded . There is no pneumothorax . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Indistinct left costophrenic angle may represent atelectasis related to low lung volumes or a small focal consolidation .