Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate low lung volumes . The upper mediastinum is somewhat prominent , possibly due to mediastinal fat ; however , slight deviation of the trachea to the right suggests the possibility of underlying mediastinal lymphadenopathy . Otherwise , the lungs are clear , with no evidence of pleural effusion , pulmonary edema , pneumothorax or focal consolidation concerning for pneumonia .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Upper mediastinal fullness may be due to lymphadenopathy .