Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Analysis is performed in direct comparison with the next preceding PA and lateral chest examination of ___ also paying attention to preceding portable chest of ___ and PA and lateral chest of ___ . The on next preceding examination identified apical small hydropneumothorax cavity has now filled incompletely indicating progression of scar formation . Left basal pulmonary changes unfortunately have also progressed . Now complete obliteration of the left diaphragmatic contour indicating airlessness of the left upper lobes lateral and posterior segments . When comparison is extended to the study of ___ , at that time beginning signs of left lower lobe atelectasis have increased . Comparison made between the lateral views also suggests some new infiltrates higher up anteriorly which were not present to the same degree at that time .
    OUTPUT:
    
Normal filling of apical remaining hydrothorax cavity . Increasing obliteration of diaphragmatic contour suggests new abnormalities in left lower lobe . Precise evaluation of pulmonary parenchymal versus pleural densities is difficult on the portable chest examinations . Clinical assesment must decide if a chest CT is required to evaluate further the integrity of remaining left lower lobe .