Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate and elevated right hemidiaphragm and normal cardiomediastinal silhouette . There is no definitive focal consolidation , pleural effusion , or pneumothorax . Atelectasis is noted at the right base . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
No definitive acute cardiopulmonary process . Right base atelectasis , unlikely pneumonia . Minimal amount of pleural effusion can not be excluded . .