Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable semi upright view of the chest . As seen on prior chest CT , there is a masslike opacity in the left lower lobe which remains concerning for malignancy . Patient is markedly rotated to the right limiting assessment . Small bilateral pleural effusions are likely present . Upper lungs are relatively well aerated without obvious pneumothorax . Left shoulder arthroplasty partially imaged .
    OUTPUT:
    
Masslike opacity in the left lower lung remains concerning for malignancy . Probable small bilateral pleural effusions . Limited exam due to rightward rotation .