胶原性胃炎一例并文献复习

A case report of collagenous gastritis in a young Chinese woman and literatures review

目的 胶原性胃炎（collagenous gastritis,CG）临床少见,现报道一例CG并进行文献复习.方法 患者行胃镜检查,活检组织切片分别行HE染色、Masson染色、刚果红染色及Warthin-Starry染色;分析病例临床资料并进行随访.结果 1例20岁女性患者主因无规律上腹痛4年,伴腹胀、呃逆、体重明显下降2个月就诊.胃镜检查于角切迹及窦部可见白色结节（活检）.病理诊断为胶原性胃炎,上皮下胶原带厚度为16.6-120.3μm,平均厚度43.8 μm,Masson染色阳性,刚果红染色阴性.给予泼尼松（20 mg/d）4周,配合促动力和胃黏膜保护药,患者食欲好转,呃逆减轻,体重略有增加.结论 目前国外文献报道CG仅40余例,其发病机制尚不明确.综合本病例临床及组织病理学特点,符合儿童和青少年发病型CG.综合相关文献及本例治疗经验,无谷胶饮食和糖皮质激素可以有效改善患者症状.

Objective Collagenous gastritis is a rare entity, characterized by the deposition of a subepithelial collagen band with an inflammatory infiltrate in the mucosa.This report describes the first case of collagenous gastritis occurring in a young Chinese woman and reviews the literatures.Methods The patient underwent the gastroscopy screening, and the biopsy specimens were treated with HE staining, Masson staining, Congo red staining and Warthin-Starry staining.Patients＇ clinical data was discussed and followed up.Results A twenty-year-old girl had intermittent epigastric pain for 4 years, abdominal distention, hiccup and weight loss for two months.The gastric endoscopy revealed diffuse white nodular appearance of the mucosa in angular incisure and antrum.Pathologic examination of the gastric biopsies from the antrum and angular showed a subepithelial collagen deposition with moderate infiltrates of lymphoplasma cells and eosinophils of the lamina propria.The collagen band measured up to 120.3 μm （mean 43.8 μm）.Prednisone 20 mg/d for 4 weeks led to clinical remission and weight gain.Conclusion There are about 40 cases in literatures to date, and the cause and pathogenesis of collagenous gastritis remain unknown.According to the clinical and pathological characteristics, the patient in this article is the subtype of collagenous gastritis that occurring in children and young adults.Specific therapy has not been established, the gluten-free diet and glucocorticosteroid may be helpful to relieve symptoms in collagenous gastritis patients.