Isolated granulomatous gastritis showing discoloration of lesions after Helicobacter pylori eradication.

We report a case of isolated granulomatous gastritis (IGG) with a submucosal tumor and multiple ulcer scars which showed discoloration after Helicobacter pylori (Hp) eradication. Furthermore, other discolored areas were newly observed after Hp eradication in the present case. Although IGG is extremely rare, the relation between IGG and Hp infection has attracted recent attention, and some case reports of IGG with Hp eradication have appeared in the literature. Discoloration after Hp eradication, however, has never been noted in any case reports and, therefore, this feature made the present case clinically interesting.