Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A 5 mm calcified density projecting over the left medial lung is noted , but unchanged . Lungs are elsewhere clear with resolution of the right middle lobe opacity . There is no pleural effusion or pneumothorax . Heart size is normal . Central airways , mediastinal silhouette , and hilar contours are normal . There is no edema .
    OUTPUT:
    
Interval resolution of right middle lobe opacity . Otherwise , unremarkable chest radiograph .