Clinical significance and long-term evolution of minimal change histopathologic variants and of IGM nephropathy among Egyptians

In children, the most frequent idiopathic nephrotic syndrome is minimal change nephrotic syndrome (MCNS). Typically, MCNS shows no abnormalities by light microscopy: "nil disease". Beside this classic picture, there are other minor light microscopic abnormalities which are considered as MC...

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Bibliographic Details
Published inJournal of nephrology Vol. 13; no. 4; p. 275
Main Authors Donia, A F, Sobh, M A, Moustafa, F E, Bakr, M A, Foda, M A
Format Journal Article
LanguageEnglish
Published Italy 01.07.2000
Subjects
Adolescent
Adult
Child
Child, Preschool
Disease Progression
Egypt
Female
Humans
Immunoglobulin M
Male
Middle Aged
Nephrosis, Lipoid - immunology
Nephrosis, Lipoid - pathology
Time Factors
Egypt
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Summary:In children, the most frequent idiopathic nephrotic syndrome is minimal change nephrotic syndrome (MCNS). Typically, MCNS shows no abnormalities by light microscopy: "nil disease". Beside this classic picture, there are other minor light microscopic abnormalities which are considered as MCNS variants. Our 172 MCNS patients were divided into a nil disease group, two groups of MCNS variants (mild mesangial hypercellularity and mild mesangial thickening) and a fourth group with normal light microscopy and diffuse IgM deposition (IgM nephropathy group). The relation of this fourth group to MCNS is controversial in the literature. Age and serum creatinine were significantly different in the four histologic groups (P=0.03 for age and 0.047 for serum creatinine). Comparing the groups in pairs, it appeared that these significant differences were due to significantly higher age and serum creatinine in the mild mesangial hypercellularity group than in the IgM nephropathy group (P = 0.02 for age and 0.01 for serum creatinine). The groups were similar as regards follow-up creatinine clearance and early and late steroid response. We concluded that mild mesangial hypercellularity may differ from other MCNS forms as regards age at presentation and renal function. We also suggest that IgM nephropathy with normal light microscopy is similar to MCNS.
ISSN:1121-8428