PMID: 2482629Jan 1, 1989Paper

[Clinical pathology of the glomerulus--from phenomenon to entity. The mesangial lesion].

Verhandlungen der Deutschen Gesellschaft für Pathologie
H V GärtnerA Bohle

Abstract

The numerous findings discussed lead to the following conclusions: 1. The mesangial lesions, which may take a wide range of different forms, can be classified into two groups according to whether an underlying immunological pathomechanism is involved. Those that result from such a pathomechanism represent various types of glomerulonephritis. 2. Amongst these immunologically-mediated glomerulonephritides mesangioproliferative glomerulonephritis (and, of this group, IgA nephritis) is the most common. Membranoproliferative glomerulonephritis is the most severe of these diseases. Either may be idiopathic or secondary, or may occur in association with systemic disease. 3. The number of macrophages in the mesangial lesions in glomerulonephritis correlates with the severity of the glomerulonephritis, the localization of the immune complex deposits and the degree of proteinuria. If the immune complex deposits extend out of the mesangium into the subendothelial space, the number of macrophages is higher, the structural changes are more marked, and proteinuria is more severe. 4. Various pathomechanisms and nosologic entities can lead to mesangial lesions of the type seen in mesangioproliferative glomerulonephritis or membranoproliferativ...Continue Reading

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