Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP upright portable views of the chest were obtained . Likely minimal left base atelectasis is seen versus very residual opacity from the previously seen lingular consolidation , decreased in the interval . No new focal consolidation , pleural effusions , or pneumothorax is seen . Cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process . Possible very minimal residual opacity at the lingular region where there was opacification on ___ , decreased since the interval .