Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate low lung volumes with resultant bronchovascular crowding . Again seen are increased interstitial markings throughout bilateral lungs which are unchanged from earlier the same day , consistent with stable pulmonary edema superimposed on chronic fibrotic changes . There is a small left apical pneumothorax , which is unchanged . A chest tube projects over the left hemithorax . The cardiomediastinal contours are unchanged . There is a small right - sided pleural effusion and small to moderate left - sided pleural effusion .
    OUTPUT:
    
Stable left apical pneumothorax .