Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . There are abnormal contours at the AP window and increased soft tissue in region of the azygous vein compatible with mediastinal lymphadenopathy , as seen on a prior CT examination from ___ . There is no pneumothorax , focal consolidation , or pleural effusion . Bibasilar atelectasis is present . There is a mottled appearance of the osseous structures , compatible with known metastatic prostate cancer .
    OUTPUT:
    
No acute intrathoracic process .