Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mediastinal widening in the right paratracheal and aorticopulmonary window is accompanied by bilateral hilar enlargement with lobulated contours . There is no pleural effusion , pulmonary edema , or pneumothorax . The heart is not enlarged .
    OUTPUT:
    
Findings concerning for mediastinal and bilateral hilar lymphadenopathy , potentially due to sarcoid . Differential diagnosis includes other causes of lymphadenopathy infection such as TB and lymphoma , as well as prominent vasculature simulating lymph node enlargement . Dedicated contrast enhanced chest CT could be considered for further evaluation .