Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . A new interstitial abnormality is suggestive of pulmonary edema . Opacities include a possible nodule projecting over the left mid lung , measuring about 15 mm in diameter ; a nipple shadow could also be considered . There is also at least one posterior right basilar nodule measuring about 12 mm in diameter that was probably already present before with patchy surrounding opacification that has not resolved . Fissures are mildly thickened . The lateral views suggest trace pleural effusions . The bones appear demineralized . Vertebral body heights and interspaces appear maintained . There is mild rightward curvature centered along the lower thoracic spine that is probably for the most part positional . Bone destruction involves the left distal clavicle , as seen previously , but somewhat difficult to compare to the prior scout view .
    OUTPUT:
    
1 . Findings suggesting mild pulmonary edema ; differential considerations include atypical infection however . 2 . Possible substantial new nodule projecting over the left mid lung versus nipple shadow . 3 . Right posterior basilar opacities with at least one discrete nodule , difficult to compare to the prior study , but with no clear suggestion of substantial change .