Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal contour is unchanged with similar enlargement of the hila compatible with known lymphadenopathy . Pulmonary vasculature is not engorged . Right perihilar opacity is re - demonstrated , perhaps minimally improved in the interval , with minimal patchy left perihilar ill - defined nodular opacities also appearing unchanged . No new focal consolidation , pleural effusion or pneumothorax is present . Streaky atelectasis is noted in the left lung base . No acute osseous abnormality is visualized .
    OUTPUT:
    
Unchanged bilateral hilar and mediastinal lymphadenopathy . Hazy opacity in the right perihilar region persists , but is perhaps minimally improved from the previous radiograph , with ill - defined nodular opacities in the left perihilar region appearing unchanged . No new focal opacity demonstrated . Constellation of findings again may reflect active tuberculosis or sarcoidosis .