Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right subclavian central venous catheter terminates in upper SVC . Right millimetric right apical pneumothorax is unchanged . There is no evidence of tension . No consolidation or large pleural effusion is identified . Cardiomediastinal silhouette is normal size .
    OUTPUT:
    
Stable millimetric right apical pneumothorax .