Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal view of the chest was obtained portably with the patient in the upright position . The study is limited due to patient 's body habitus . Low lung volumes results in bronchovascular crowding . There is no focal consolidation , large pleural effusion or pneumothorax . Small pleural effusions would be difficult to exclude . Cardiac and mediastinal silhouettes are unchanged . Hilar contours are normal allowing for lung volumes .
    OUTPUT:
    
Limited study . No definite pneumonia or edema .