Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes , which accentuate bronchovascular markings . Hilar and mediastinal silhouettes are unchanged . Heart size is top normal . There is no focal consolidation or pneumothorax . There is minimal blunting of the right costophrenic angle , suggestive of possible trace pleural effusion .
    OUTPUT:
    
no acute cardiopulmonary process .