Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are unchanged with prominence of the right hilum compatible with underlying lymphadenopathy . The pulmonary vasculature is not engorged . 2 masses with in the right lower lobe are unchanged , and the patient is status post right upper lobectomy and left lower lobe wedge resection . Other known pulmonary nodules with in the right lower lobe seen on the previous CT are not as well delineated on the current exam . Focal opacification within the left lower lobe appears similar compared to prior radiographs and likely reflects a combination of chronic neoplasm and atelectasis . Small right pleural effusion is unchanged and left pleural thickening and fluid is similar . There is no pneumothorax . Hazy opacity within the right lower lobe also appears improved from the prior radiograph and corresponds to ground - glass opacities noted on prior CT . Emphysematous changes with in the left upper lobe are seen . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
Chronic left lower lobe opacity felt to reflect a combination of atelectasis and neoplasm . Persistent small right pleural effusions and left pleural effusion / thickening . Improving opacification within the right lower lobe with unchanged masses compatible with known malignancy .