Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is upper zone redistribution of pulmonary vasculature , as well as indistinct appearance of pulmonary vessels . Fissures are mildly thickened . Patchy basilar opacities are not specific and may be due to atelectasis , but the possibility of developing pneumonia , especially in the posterior left lower lobe in the retrocardiac region , could be considered . The bones appear demineralized . Degenerative changes are similar along the thoracic spine .
    OUTPUT:
    
Findings suggesting mild vascular congestion . Patchy opacities in the right cardiophrenic sulcus and posterior left lower lobe ; although these could be seen with atelectasis , developing pneumonia is a consideration .