Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube has been removed . Heart size is normal . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is not engorged . Left lower lobe collapse has developed in the interval with small left pleural effusion . Minimal atelectasis is noted in the right lower lobe . No pneumothorax is identified . Multiple vertebral bodies within the imaged thoracolumbar spine again demonstrate prominent Schmorl nodes and mild loss of vertebral height . Remote left - sided rib fractures are re - demonstrated .
    OUTPUT:
    
Left lower lobe collapse and small left pleural effusion . Coexisting infection in the left lower lobe is not excluded .