Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . Evaluation of the lung parenchyma is limited by body habitus . Lung volumes remain low , as they have been in prior years . There is no focal consolidation , effusion , or pneumothorax . Cardiac and mediastinal contours are normal .
    OUTPUT:
    
Persistently low lung volumes . No acute cardiopulmonary process . HRCT is better for evaluation of interstitial lung disease , if suspected .