Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal semi-erect chest radiograph demonstrates a tracheostomy in appropriate position . Lung volumes are low . The cardiomediastinal silhouette is unchanged . Consolidation seen in ___ is improved , with streaky opacities likely atelectasis . A small right pleural effusion is unchanged . No definite focal consolidation is identified . There is no pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
No definite focal consolidation . Streaky right base opacity is likely atelectasis , possibly related to a small right pleural effusion , unchanged .