Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph obtained . There is a small right apical pneumothorax which is slightly diminished in size compared with outside hospital prior exam . No significant right lung collapse . A tiny fiducial seed is noted within a known right lower lobe nodular lesion , better seen on the prior CT . Cardiomediastinal silhouette is normal . No large effusion is seen . Bony structures are intact .
    OUTPUT:
    
Small right apical pneumothorax , marginally diminished in size compared with prior study from___ . Fiducial seed noted within known right lower lobe lung nodule .