Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable chest radiograph . The lungs are well expanded . Reticular opacities predominantly involve the right base . There is no consolidation , effusion or pneumothorax . Cardiomegaly is moderate . The trachea is deviated leftward by the thyroid and rightward by the calcified aortic arch . A one cm . nodule in the right apex ; to determine whether it is calcified , and part of a region of scarring , would require CT scanning .
    OUTPUT:
    
1 . Chronic lung disease -- ___ and / or bronchiectasis . 2 . Right upper lobe lung nodule , nature indeterminate , needs further imaging . 2 . No definite evidence of acute cardiopulmonary process .