Research Article

Clinicopathological Features, Treatment Strategy, and Prognosis of Primary Non-Hodgkin’s Lymphoma of the Duodenum: A SEER Database Analysis

Figure 3

Trend of treatment modality (surgery vs. conservative treatment) to PGLs over the 18-year period from 1998 to 2015. The proportion of patients who received conservative treatment increased from 84.40% in period 2 to 94.74% in period 4, whereas patients who received surgical treatment gradually decreased from 15.60% in period 2 to 5.26% in period 4.