Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lung volumes are decreased . 4 mm nodular opacity in the left lung apex is grossly unchanged in size from comparison study likely represents a calcified granuloma . There is no focal consolidation , effusion , or pneumothorax . Heart size is normal . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
1 . No acute intrathoracic process . 2 . Stable 4 mm opacity left lung apex likely representing a calcified granuloma .