A Case of Gastric MALT Lymphoma Presenting as Nodular Gastritis in a Child

Korean Journal of Pediatric Gastroenterology and Nutrition Pub Date : 2008-09-01 DOI:10.5223/KJPGN.2008.11.2.187

Kun-Song Lee, H. Yang, J. Ko, J. Seo, H. Lee

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引用次数: 2

Abstract

Most cases of mucosa-associated lymphoid tissue (MALT) lymphoma occur in adults. MALT lymphoma is very rare in children. Helicobacter pylori ( H. pylori ) infection is known to be an important etiologic factor predisposing to the development of gastric MALT lymphoma. A 12-year-old girl was admitted because of intermittent abdominal pain occurring over the preceding 2 years. Nodular gastritis of the stomach was demonstrated on endoscopy. H. pylori infection was confirmed using the rapid urease test and histopathology. Histopathological examination of gastric biopsy specimens revealed lymphoepithelial lesions pathognomonic of MALT lymphoma, and immunohistochemical staining for CD20 was diffusely positive. Therefore, the patient was diagnosed with gastric MALT lymphoma. Clinical manifestations and histopathologic findings compatible with MALT lymphoma improved with the eradication of H. pylori infection. We report a case of primary gastric MALT lymphoma in a child, associated with H. pylori infection and presenting as nodular gastritis. (Korean J Pediatr Gastroenterol Nutr 2008; 11: 187 ∼ 192)

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儿童胃MALT淋巴瘤表现为结节性胃炎1例

大多数粘膜相关淋巴组织(MALT)淋巴瘤发生在成人。MALT淋巴瘤在儿童中非常罕见。幽门螺杆菌(h.p ylori)感染被认为是诱发胃MALT淋巴瘤的重要病因。一名12岁女孩因前2年出现间歇性腹痛而入院。胃镜检查显示结节性胃炎。通过快速脲酶试验和组织病理学证实幽门螺杆菌感染。胃活检标本组织病理学检查显示淋巴上皮病变为MALT淋巴瘤的病理特征，CD20免疫组化染色弥漫性阳性。因此，患者被诊断为胃MALT淋巴瘤。随着幽门螺杆菌感染的根除，与MALT淋巴瘤相符的临床表现和组织病理学结果得到改善。我们报告一例儿童原发性胃MALT淋巴瘤，伴幽门螺杆菌感染，表现为结节性胃炎。韩国儿科胃肠病学杂志2008;[11: 187 ~ 192]

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Korean Journal of Pediatric Gastroenterology and Nutrition

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