Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right Port - A - Cath ends in the low SVC . Severe cardiomegaly is unchanged . There is no consolidation , pulmonary edema , or pleural effusion . Mild atelectasis is present at the left base . There is no pneumothorax .
    OUTPUT:
    
No evidence of pneumonia . Mild left basilar atelectasis .