Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Port -A - Cath tip projects in the right atrium , unchanged .
    OUTPUT:
    
There is diffuse bilateral interstitial prominence which may represent mild pulmonary edema or alternatively lymphangitic spread of tumor . Multiple known metastatic nodules seen on CT are not well evaluated by radiography . Interstitial abnormalities limit detection of subtle consolidation however there is no large consolidation , pleural effusion , or pneumothorax . Cardiomediastinal silhouette is stable .