Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Left PICC is no longer visualized . The lungs are essentially clear noting that the left costophrenic angle is excluded from the field of view . There is no evidence of pneumothorax . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities detected .
    OUTPUT:
    
No acute cardiopulmonary process , no evidence of pneumothorax .