Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left lower lobe opacity is worrisome for pneumonia . There may also be a trace left pleural effusion . The patient is rotated to the left . No pneumothorax is seen . The right lung is grossly clear . There is some central pulmonary vascular engorgement . No pleural effusion or pneumothorax is seen . The mediastinum and heart size appear stable .
    OUTPUT:
    
Left lower lobe opacity worrisome for pneumonia . Possible trace left pleural effusion . Recommend followup to resolution . Central pulmonary vascular engorgement