title: Electron microscopic study of the cases of minimal change nephrotic syndrome with mesangial IgA deposition.
abstract: Twenty-five cases of minimal change nephrotic syndrome(minimal change disease, MCD) with mesangial IgA deposition were evaluated electron microscopically. The thickness of the glomerular basement membrane(GBM) was 3875 +/- 1271 A and 3056 +/- 1201 A in adults and children, respectively. Alteration of the GBM was noted in 3 adults and eight children: splitting in 4, focal thinning in one, widening of the lamina rara interna in 10, and widening of the lamina rara externa in 4 cases. Minimal mesangial electron dense deposits were found in all but one adult, and an increase of the mesangial matrix and minimal mesangial proliferation were observed in 8 and 6 cases, respectively. Electron microscopic findings show representative findings of MCD in our cases. A relationship between the GBM alterations in these cases and frequent association of hematuria is suggested and discussed.
authors.affiliation: Department of Pathology, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: H J
authors.initials: HJ
authors.lastname: Jeong
authors.forename: S H
authors.initials: SH
authors.lastname: Jung
authors.forename: I J
authors.initials: IJ
authors.lastname: Choi
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D005920:Glomerular Mesangium / Q000378:metabolism*; D006801:Humans; D007070:Immunoglobulin A / Q000378:metabolism*; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D009402:Nephrosis, Lipoid / Q000378:metabolism* / Q000473:pathology*
chemical_list: D007070:Immunoglobulin A