Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is leftward rotation of the patient current radiograph . Tracheostomy tube is again seen in grossly appropriate position . Allowing for differences in technique , the cardiomediastinal silhouettes are stable . There are low lung volumes and a sub - optimal inspiratory effort . Right lower lung and retrocardiac opacities likely represent basilar atelectasis , however , pneumonia can not be excluded in the correct clinical setting . Small bilateral pleural effusions are likely still present . Central hilar prominence may represent mild pulmonary vascular congestion without evidence of frank pulmonary edema . There is no pneumothorax .
    OUTPUT:
    
1 . Probable bibasilar atelectasis and small bilateral pleural effusions , however , left lower lobe pneumonia can not be excluded in the correct clinical setting . 2 . Mild pulmonary vascular congestion without frank pulmonary edema .