Figure 1From: Multiple primary malignancies involving primary sporadic colorectal cancer in Japan: incidence of gastric cancer with colorectal cancer patients may be higher than previously recognized Incidence of multiple primary malignancies according to colorectal cancer stage. 37 of 284 patients with colorectal cancer (13%) with stage I had multiple primary malignancies, 47 of 330 patients with colorectal cancer (12.4%) had stage II, 26 of 321 patients with colorectal cancer (8.1%) had stage III and 7 of 126 patients with colorectal cancer (5.6%) had stage IV. The incidence of multiple primary malignancies decreased with colorectal cancer stage. MPM, multiple primary malignancy.Back to article page