Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is a new focal confluent opacity in the right lower lobe and an approximately 1 cm poorly defined nodular opacity in the left mid lung the fourth anterior rib level . Linear opacities in the right lower lobe likely represent scarring . There is a small right pleural effusion versus pleural thickening . There is no pneumothorax . Cardiomegaly is unchanged compared to scout images from CTA chest ___ . Enlarged pulmonary arteries are suggestive of pulmonary arterial hypertension . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
1 . Confluent opacity in the right lower lobe could be compatible with pneumonia in the appropriate clinical setting . 1 cm poorly defined nodular opacity in left mid lung could potentially be infectious or neoplastic and is without correlate on prior CTA . Follow - up chest radiographs are recommended in ___ weeks after completion of antibiotic therapy to ensure resolution . 2 . Small right pleural effusion vs pleural thickening and adjacent linear scar .