Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged including prominence of the main pulmonary artery contour on the frontal view . A right upper lobe opacity has cleared . Background reticulation of the lungs appears otherwise similar to the prior study . Patchy new right basilar opacity tenting the right hemidiaphragm suggests minor atelectasis . There is no pleural effusion or pneumothorax . Degenerative changes are present along the thoracic spine . The bones appear demineralized . There is at least one and may be more thoracolumbar compression fractures that are not well characterized on this study but with no indication for recent change since a recent prior CT .
    OUTPUT:
    
Clearance of right upper lobe pneumonia . Patchy new right basilar opacity tenting the right hemidiaphragm , but most likely atelectasis .