Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant change compared to the prior exam . Stable bilateral low lung volumes . No focal consolidation , pleural effusion , pulmonary edema , or pneumothorax . Persistent prominent hila , consistent with known history of sarcoidosis . Normal cardiomediastinal silhouette . Stable mildly tortuous descending aorta . Pleura are within normal limits . No radiographic evidence of interstitial fibrosis .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Fullness of the hila , unchanged since ___ and consistent with sarcoidosis . 3 . No interstitial fibrosis .