Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Evaluation is somewhat limited by the patient 's body habitus . At the right base , there is localized pleural and parenchymal scarring with volume loss , which appears similar to prior exams . No new consolidation is identified . There is no pulmonary edema , pleural effusion , or pneumothorax . The mediastinal contours are normal . The heart size is at the upper limits of normal .
    OUTPUT:
    
No definite pneumonia , though given the baseline abnormality in the right lung base , an acute process is difficult to exclude . If indicated , short term followup chest radiographs or CT could be obtained .