Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs . Dual - chamber pacer leads and prosthetic mitral valve are in stable position . Moderate right pleural effusion with layering along the costal pleura and within the major fissure are unchanged from multiple priors . There is no pleural effusion on the left . Mild cardiomegaly is stable . There is no pneumothorax .
    OUTPUT:
    
Stable moderate loculated right pleural effusion .