Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The patient is status post median sternotomy . The lateral view is somewhat suboptimal due to the patient 's overlying arm . No pleural effusion is seen . No definite focal consolidation is seen . There is no evidence of pneumothorax . The cardiac silhouette is mildly enlarged . The aorta is slightly tortuous .
    OUTPUT:
    
Suboptimal lateral views due to the patient 's overlying arm . Otherwise , mild cardiomegaly without overt pulmonary edema .