Recurrent anaemia in a patient with lymphocytic gastritis and vitamin B12 deficiency.

Lymphocytic gastritis is an idiopathic disease, characterized by intraepithelial infiltration of large numbers of T lymphocytes and often described in association with coeliac disease and Helicobacter pylori infection. Although usually associated with iron deficiency anaemia, there is no description on the association between lymphocytic gastritis and secondary vitamin B12 deficiency anaemia. We describe a rare case of recurrent anaemia in a patient with lymphocytic gastritis reversed with vitamin B12 replacement.