Question 12#
Which blood group is associated with an increased risk of gastric cancer?
A. AB. B
C. AB
D. O
Correct Answer is A
Comment:
Gastric cancer is more common in patients with pernicious anemia, blood group A, or a family history of gastric cancer. When patients migrate from a high-incidence region to a low-incidence region, the risk of gastric cancer decreases in the subsequent generations born in the new region. This strongly suggests an environmental influence on the development of gastric cancer. Environmental factors appear to be more related etiologically to the intestinal form of gastric cancer than the more aggressive diffuse form. The commonly accepted risk factors for gastric cancer are listed in Table below.
Factors increasing or decreasing the risk of gastric cancer:
