the mechanism of the raised gastrin levels remains uncertain , but neither achlorhydria nor in vivo action of the parietal cell antibody wholly accounted for the hypergastrinaemia.we conclude that hypergastrinaemia is characteristic of gastritis associated with autoimmune reactions to gastric antigens and pernicious anaemia and that a raised serum gastrin is a useful marker of the type of gastritis that tends to progress to the gastric lesion of pernicious anaemia .
C0001075
achlorhydria
C0038351
gastric