Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A triangular - shaped irregularity at the left lung base appears stable since ___ , and may represent the sequelae of postsurgical changes given the wire located in the left upper quadrant . Numerous mediastinal clips are also noted . There is no pleural effusion and no evidence of pneumonia . No evidence of pulmonary edema . The heart size remains top normal .
    OUTPUT:
    
1 . No evidence of acute cardiopulmonary process 2 . Chronic blunting of the left costophrenic angle likely the sequela of prior surgery