Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a small left pleural effusion as well as small left lower lobe airspace opacity . The lungs are otherwise clear . There is no pneumothorax . Heart and mediastinum are unremarkable . No pulmonary edema .
    OUTPUT:
    
Small left pleural effusion as well as a small region of left lower lobe consolidation . If clinical presentation is not convincing for pneumonia , pulmonary embolism should be considered .