Figure 2From: Multiple primary malignancies involving primary sporadic colorectal cancer in Japan: incidence of gastric cancer with colorectal cancer patients may be higher than previously recognized Comparison of the incidence between synchronous gastric cancer in patients with colorectal cancer and gastric cancer among screened patients according to age subgroups. In those older than 54Â years, the incidence of synchronous gastric cancer in patients with colorectal cancer was significantly higher than that of gastric cancer among the mass-screened group. GC, gastric cancer.Back to article page