Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Comparison is made with the next preceding similar study of ___ . The heart size remains unchanged and is within normal limits . Unremarkable position of previously described left - sided PICC line terminating in mid portion of SVC . The pulmonary vasculature is not congested and no pneumothorax can be identified . On previous examinations remaining multifocal density have generally improved . In particular , a lesion identified on the last examination overlying the right upper lobe area laterally ( third right intercostal space ) has cleared up almost completely . Densities located in the right middle lobe as well as those seen in the left upper lobe lingula persist , but have also undergone a slight improvement . Again , no pneumothorax has developed , no new infiltrates are seen and the lateral and posterior pleural sinuses remain free from any pleural effusion .
    OUTPUT:
    
Improvement of multifocal infiltrates but persistent densities in right middle lobe and peripheral lingula . Further followup examination must be guided by patient 's symptomatology .