Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior exam , the small right pleural effusion and right basilar atelectasis are resolved . The left perihilar opacity is unchanged and consistent with the patient 's known malignancy . There is no new opacity . There is no pulmonary edema or pneumothorax . The cardiomediastinal silhouette is otherwise normal . Incidentally noted is calcified granuloma in the left mid lung zone .
    OUTPUT:
    
1 . Resolution of right pleural effusion and atelectasis . 2 . Stable left perihilar opacity consistent with the patient 's known malignancy .