Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In the left lower lobe , there is a lobulated opacity measuring approximately 4 .7 x 6 .4 cm , possibly continuous with the left hilar structures . The right lung is grossly clear . No pleural effusion or pneumothorax is seen . The heart size is top - normal . The right hilar and mediastinal silhouette is otherwise unremarkable . Compression deformity of T8 second seen .
    OUTPUT:
    
Lobulated opacity , possibly continuous with the left hilar structures , new since ___ . While this may represent infectious etiology , given patient 's history of lymphoma , further evaluation with cross - sectional imaging would be appropriate , if clinically indicated .