(A) Kaplan-Meier progression-free survival (PFS) between radiotherapy and non-radiotherapy-based treatment in patients with limited-stage primary ocular adnexal MALT lymphoma. Five-year PFS 89.9% and 52.9%, respectively (P=0.007). (B) Kaplan-Meier progression-free survival (PFS) comparison between radiotherapy-containing therapy and non-radiotherapy-containing therapy in patients with advanced-stage primary ocular adnexal MALT lymphoma. Five-year PFS 66.7% and 49.5%, respectively (P=0.52).