Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates overall unchanged appearance of a right upper lobe paramediastinal mass with associated volume loss in the right lung consistent with known lung carcinoma . No developing opacity is identified worrisome for an infectious process . New relative to prior examination is a small right - sided pleural effusion . Cardiomediastinal contours are stable . There is no evidence of pulmonary edema . No pneumothorax .
    OUTPUT:
    
New right small pleural effusion . Overall unchanged appearance of known right upper lobe paramediastinal mass with volume loss in the right hemi thorax .