Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Widespread pulmonary nodules consistent with diffuse metastatic disease appear unchanged . However , an area of coalescent opacification partially obscuring known mass is demonstrated within the left retrocardiac region , and could potentially be due to a developing area of infection given the clinical suspicion for this entity . Heart size remains normal . Enlargement of both hila consistent with known lymphadenopathy , and mediastinal lymph node enlargement is also present . Bilateral small pleural effusions are apparently new .
    OUTPUT:
    
1 . Possible developing pneumonia within the left lower lobe . Consider standard PA and lateral chest radiographs for more complete evaluation when the patient 's condition permits . 2 . Widespread pulmonary nodules and lymphadenopathy consistent with metastatic disease . 3 . Small bilateral pleural effusions .