Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is confluent increased opacity in the right lung apex . The remainder of the lungs are clear . There is no pleural effusion or pneumothorax . The heart size is normal . The hila are prominent bilaterally and there is also apparent enlargement of the main pulmonary artery contour . The patient is status post right mastectomy with reconstruction .
    OUTPUT:
    
1 . Right apical opacity could reflect pneumonia . However , given the remote history of radiation therapy , radiation fibrosis is an additional consideration . 2 . Prominent hila and enlarged main pulmonary artery contour , possibly reflecting pulmonary arterial hypertension . In the absence of prior CXR , it is difficult to exclude lymphadenopathy . Contrast - enhanced chest CT is recommended for further evaluation of the above findings . Findings were discussed with Dr . ___ at 2 : 45 pm on ___ , via telephone .