Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is mildly enlarged . There is massive enlargement of the pulmonary arteries compatible pulmonary arterial hypertension . A moderate size right pleural effusion with compressive right basilar atelectasis is noted . Mild pulmonary vascular engorgement is seen . There is no pneumothorax . Minimal atelectasis is seen in the left lung base without focal consolidation . No acute osseous abnormalities present .
    OUTPUT:
    
Moderate right pleural effusion with compressive right basilar atelectasis . Minor left basilar atelectasis . Massive enlargement of the pulmonary arteries compatible with pulmonary arterial hypertension .