Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . Allowing for rotation , low lung volumes and AP portable technique , the cardiac , mediastinal , and hilar contours appear unchanged , including suspected mild cardiomegaly . The aortic arch is calcified . There is patchy left basilar opacity suggestive of minor atelectasis , but otherwise the lungs appear clear . Although difficult to entirely exclude , there is no definite evidence for pleural effusion .
    OUTPUT:
    
Limited examination without definite evidence for acute disease . Noting the limitations of this study , if pulmonary symptoms were to persist or worsen , a short - term followup radiographs should be considered , preferably with standard PA and lateral technique , if possible to reassess the significance , if any , of vague left basilar opacity .