Persistent bilateral hilar enlargement, particularly prominent on the right; possible causes include pulmonary congestion, lymphadenopathy, enlargement of pulmonary arteries, or a combination of these factors. Other etiologies such as a mass cannot be excluded.
Pulmonary congestion (Uncertain) Mass/Solitary lung mass (Uncertain) Hilar lymphadenopathy (Uncertain) Enlarged pulmonary artery (Uncertain)