Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to prior radiographs on ___ , there is a prominent pleural line at the right apex which could be due to pleural calcifications seen on CT on ___ , however small right apical pneumothorax can not be excluded . There is no evidence of tension . The right - sided pigtail catheter is unchanged in position . Small right pleural effusion is unchanged . There is no new focal consolidation . Cardiomediastinal silhouette is unchanged . Again seen are diffuse sclerotic lesions compatible with osseous metastatic disease .
    OUTPUT:
    
Prominent pleural line at the right apex is likely due to pleural calcifications seen on CT on ___ , however small right apical pneumothorax can not be excluded .