Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is borderline or slightly enlarged . Of note , there is a hazy somewhat triangular opacity centered in the anterior segment of the right upper lobe , abutting the minor fissure which appears very slightly retracted . Otherwise , no focal opacity and no frank consolidation identified . This opacity partially obscures the right hilum , but otherwise , the hilar contours are grossly unremarkable . There is upper zone redistribution , without overt CHF . No effusion . No pneumothorax detected . Mild right convex curvature of the thoracic spine and background degenerative changes noted .
    OUTPUT:
    
1 . Right upper lobe opacity suggestive of atelectasis . Early pneumonia is a less likely consideration but can not be entirely excluded . Resultant partial obscuration of the right hilum noted . If clinically indicated , followup imaging to assess for evolution is recommended . 2 . In addition , followup chest radiograph in 6 weeks is recommended for resolution .