This report describes general characteristics of the group of diseases classified as focal segmental glomerulosclerosis (FSGS). FSGS is a genetically heterogeneous disorder with multiple causative genes and mapped loci. A comprehensive list of FSGS subtypes, as defined by OMIM can be found by following the link in the "OMIM phenotypic series" section, below. A subset of these are listed in the table below, with links to more detailed reports for subtypes that have been investigated using fly models.
In the literature, the clinical term 'nephrotic syndrome' (NPHS) and the pathologic term 'focal segmental glomerulosclerosis' (FSGS) have often been used to refer to the same disease entity; see the human disease model report 'nephrotic syndrome', FBhh0000317.
[updated Sep. 2017 by FlyBase; FBrf0222196]
Focal segmental glomerulosclerosis is one of many diseases and conditions can affect kidney function by attacking and damaging the glomeruli. "Glomerulosclerosis" refers to a hardening and scarring of the glomeruli. The scarring of FSGS takes place in small sections of each glomerulus, and only a limited number of glomeruli are damaged initially (https://www.kidney.org/atoz/content/focal).
A definitive diagnosis of FSGS is established only by histopathology findings (http://emedicine.medscape.com/article/245915-overview).
Focal segmental glomerulosclerosis is a common cause of end-stage renal disease (Meyrier, 2005; pubmed:16932363). [from MIM:607832; 2017.09.14]
In the literature, the clinical term 'nephrotic syndrome' (NPHS) and the pathologic term 'focal segmental glomerulosclerosis' (FSGS) have often been used to refer to the same disease entity. In OMIM, these disorders are classified as NPHS or FSGS according to how they were first designated in the literature. [from MIM:607832; 2017.09.14]
Focal segmental glomerulosclerosis (FSGS) is a pathologic finding in several renal disorders that manifest clinically as proteinuria and progressive decline in renal function. Some patients with FSGS develop nephrotic syndrome, which includes massive proteinuria, hypoalbuminemia, hyperlipidemia, and edema. However, patients with FSGS may have proteinuria in the nephrotic range without other features of the nephrotic syndrome (summary by D'Agati et al., 2004, pubmed:14750104; Mathis et al., 1998, pubmed:9461087). [from MIM:603278; 2017.09.14]