Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable AP chest radiograph was obtained . The lungs are well expanded . There is minimal atelectasis at the left base . Cardiomegaly is mild . There is no effusion , pneumothorax , or consolidation . Heterotopic calcification and surgical clips in the right axilla are sequelae from prior axillary - bi - femoral bypass . The left subclavian central catheter terminates in the proximal left basilic vein .
    OUTPUT:
    
No acute cardiopulmonary process .