PMID: 2482636Jan 1, 1989Paper

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

Verhandlungen der Deutschen Gesellschaft für Pathologie
K H Langer

Abstract

Characteristics of the membranous lesion are usually the capillary wall thickening in morphology and the clinical manifestation of a nephrotic syndrome. As entities of such a lesion the following types of glomerulonephritis (GN) could be considered: (peri-) membranous GN, garland type of postinfectious GN, and membranoproliferative (MP) GN. The morphological, especially the electronmicroscopical observations relative to separate immune deposit locations in the capillary wall--subendothelial, intramembranous, subepithelial--are the basis to differentiate the diseases as entities. The characteristic finding of the (peri-) membranous GN is the presence of subepithelial immune deposits along the capillary walls, which are separated by "spikes" and later on are incorporated into the basement membrane, while some of the deposits became rarefied; on the other hand, new subepithelial deposits can be observed when the disease of the most common idiopathic form starts again after a period of remission.--The deposits of the garland type of the postinfectious GN--the disease is more often a chronic progressive process than the other types of postinfectious GN--are in a subepithelial location. In contrast to the former the deposits vary in ...Continue Reading

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