Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest . A tracheostomy is seen in adequate position . Bibasilar opacities are seen , which may represent atelectasis but can not exclude pneumonia or aspiration in the right clinical setting . There is moderate right pleural effusion . The left costophrenic angle is not included on this exam , but no left pleural effusion is seen . There is no pneumothorax . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Bibasilar opacities and right pleural effusion . Findings may represent atelectasis , but can not exclude pneumonia or aspiration in the right clinical setting .