Two Cases of Pediatric Collagenous Gastritis Each Presenting with Refractory Iron Deficiency Anemia and Chronic Diarrhea / 대한소아소화기영양학회지

ABSTRACT

Collagenous gastritis (CG) is a rare disorder that is characterized by the presence of a thick subepithelial collagen band with multiple infiltrated inflammatory cells of the gastric mucosa. CG is divided into two major subsets: first, in children and young adults presenting with severe anemia and abdominal colic pain (pediatric-type CG); and second, in adult patients with chronic watery diarrhea associated with collagenous colitis (adult-type CG). We report two cases of pediatric-type CG, each presenting with refractory anemia and chronic diarrhea.