Authors: Larry Allen

Author Disclosure Block: L. Allen: None.

Abstract Body:

Purpose: To describe the outcome of 5 patients treated with proton Beam radiotherapy for adjunct therapy for adenoid cystic carcinoma.
Methods: A retrospective review of 5 patients who underwent Proton Beam therapy following debulking surgery for adenoid cystic carcinoma of the lacrimal gland from 20011 to 2015.
Results: 5 patients showed stability of the disease and much less morbidity and fewer treatment related complications as compared to conventional therapy .Vision remained 20/50 or better in 4 of the 5 patients The one patient had loss of vision related to Diabetic retinal complication following therapy . All had an element of dry eye and keratopathy but less so than conventional therapy.
Conclusions: Overall morbidity associated with adjunct Proton Beam therapy for remaining disease was much less than historical therapy for residual tumor .Stability of the tumor is noted over the time period .Proton Beam therapy offers alternative therapy to conventional Photon therapy with less morbidity and stability but at a much more expensive cost factor