Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographdemonstrates stable moderate sized right pleural effusion . Heterogeneous rounded opacity only seen on lateral projection projecting over the mid thoracic spine is slightly more prominent from prior examination . No additional focal opacity . No pneumothorax . Stable mild cardiomegaly is noted . Mediastinal contour , and hila are unremarkable . Limited assessment of the upper abdomen is within normal limits .
    OUTPUT:
    
1 . Heterogeneous rounded opacity only seen on lateral projection projecting over mid thoracic spine is most consistent with loculated effusion . Recommend follow - up chest radiograph in 6 weeks to assess for resolution . 2 . Stable moderate sized right pleural effusion . 3 . Stable mild cardiomegaly .