Treatment for a right hilar mass on the lung can be surgery, radiation, chemotherapy or medications, depending on what is causing the mass, says About.com. The mass can be caused by lung cancer and lymphomas or pulmonary arterial or venous hypertension.
A right hilar mass can also be caused by Behcet's syndrome, according to PubMed. In the case of Behcet's syndrome, a patient was given drugs to reduce inflammation and suppress his immune system. They were pulse dexamethasone and cyclophosphamide, claims PubMed.
There are a few types of lung surgery for people suffering from lung cancer, as well as chemotherapy drugs, drugs that specifically target abnormalities in the cancer cells and radiation therapy, claims Mayo Clinic. Treatments for pulmonary hypertension include vasodilators, endothelin receptor antagonists, diuretics and calcium channel blockers, says Mayo Clinic.