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一个儿科病例的膜状球膜病变与蒙面的IgG卡帕沉积物

Yuichi Uno¹, Hiroshi Kitamura², Katsuyoshi Kanemoto³

¹Department of Pediatrics, NHO Chiba Medical Center Chibahigashi National Hospital, 673 Nitona-cho, Chuou-ku, Chiba City, Chiba, 260-8712, Japan. yuichiuno@gmail.com.

CEN case reports

|December 23, 2025

概括

带有掩盖的免疫球蛋白G卡帕沉积物的膜状血球病 (MGMID) 是一种罕见的病. 一个9岁男孩的独特案例凸显了在儿童患者诊断这种疾病时需要进行前性消化.

科学领域:

腎臟病學 (nephrology) 是一種醫學專業.
病理学病理学病理学
免疫学免疫学免疫学

背景情况:

带有掩盖的免疫球蛋白G卡帕沉积物的膜状血球病 (MGMID) 是一种罕见的病.
通常影响年轻的成年女性,以单克隆IgG卡帕沉积为特征.
诊断需要专门的免疫光与前酶消化来揭露沉积物.

研究的目的:

报告一个9岁男孩中最年轻的MGMID病例.
为了强调在儿科病例中前酶消化的诊断实用性.
强调在患有膜性病的儿童中考虑MGMID的重要性.

主要方法:

一个9岁男孩的病例报告,他患有蛋白尿和血液尿.
用光显微镜进行脏活检,免疫光检测 (新鲜冷和嵌入式) 和电子显微镜.
专用免疫光染色与酶消化在甲固定胺嵌入组织上.

主要成果:

脏活检显示了带有细分亚皮质沉积物的膜状损伤模式.
常规免疫光检测显示只有C3沉积物;素免疫光检测显示IgG kappa限制.
酶消化揭示了IgG1卡帕沉积物,在这个儿科患者中证实了MGMID.

结论:

这是最年轻的MGMID记录病例.
在FFPE组织上的pronase消化对于在患有膜性损伤和非典型IF发现的儿科患者中诊断MGMID至关重要.
在对儿科膜性病的差异诊断中应考虑MGMID.

关键词:

淋巴细胞突炎淋巴细胞突炎蒙面存款是一种隐蔽存款.一种类似膜状的淋巴细胞病变.巴拉芬嵌入式嵌入式亚皮质沉积物是下皮质沉积物.

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