Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . The lungs are clear aside from mild platelike left mid lung atelectasis . A fat pad effaces the left lower heart border . Lungs are mildly hyperinflated . No signs of pneumonia or edema . No large effusion or pneumothorax . The cardiomediastinal silhouette is stable . Chronic degenerative disease is noted at both shoulders . No free air below the right hemidiaphragm .
    OUTPUT:
    
No pneumonia or other acute intrathoracic process .