Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lung volumes are somewhat low . There is bronchovascular crowding likely accounting for subtle opacity at the right medial lung base . No convincing evidence for pneumonia . No large effusion or pneumothorax . No pulmonary edema or signs of congestion . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
No acute intrathoracic process .