Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate prominent interstitial markings , most pronounced in lower lobes . There is no focal consolidation or pleural effusion . There is no pneumothorax . No pulmonary edema . Hilar , mediastinal and silhouettes are unremarkable . Heart size is normal . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
Prominent interstitial marking predominantly in the lower lobes . In the setting of high clinical concern for interstitial lung disease , given patient 's smoking history , may consider chest CT for further assessment .