Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ and ___ . Left lower lobe lung mass is again noted . Margins on the current exam are less clearly delineated when compared to pre-biopsy exam , however , appear similar to prior portable exam from ___ . There is increased opacity more posteriorly in the left lower lobe , potentially due to consolidation , post - biopsy changes and possible underlying small effusion . Elsewhere , the lungs are clear . Cardiomediastinal silhouette is stable . Left shoulder arthroplasty again noted . Osseous and soft tissue structures are otherwise unremarkable .
    OUTPUT:
    
No significant interval change since prior .