Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . A large bulla in the right upper lobe is unchanged . There is no focal consolidation , pleural effusion , or pneumothorax . Mild interstitial pulmonary edema and cardiomegaly are similar to ___ . No displaced rib fracture is identified .
    OUTPUT:
    
1 . Mild congestive heart failure , similar to ___ . 2 . Large right upper lobe bulla .