Enlargement of the hili is usually due to lymphadenopathy or enlarged vessels. In this case there is an enlarged hilar shadow on both sides. This could be the result of enlarged vessels or enlarged lymph nodes. A very helpful finding in this case is the mass on the right of the trachea. This is known as the 1-2-3 sign in sarcoidosis, i.e. enlargement of left hilum, right hilum and paratracheal. #Clinical #Radiology #CXR #Garland #Triad #GarlandTriad #Sarcoidosis #Lymphadenopathy #ParatrachealStripe #RadiologyAssistant
