Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffuse bilateral interstitial and nodular opacities are increasingly visible on today 's examination . Of note , there are no appreciable pleural effusions . The heart and mediastinum are within normal limits despite the projection . Scattered vascular calcifications are incidentally noted .
    OUTPUT:
    
Increasingly prominent interstitial structures and nodular opacities within notable absence of pleural effusions , which is not typical for an hydrostatic pulmonary edema . Other possible etiologies including lymphangitis or fibrotic lung disease should be considered .