Membranous glomerulonephritis diagnostic study of choice: Difference between revisions
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__NOTOC__ | __NOTOC__ | ||
{{Membranous glomerulonephritis}} | {{Membranous glomerulonephritis}} | ||
{{CMG}}; {{AE}} | {{CMG}}; {{AE}} {{SAH}} {{JSS}} | ||
== Overview == | == Overview == | ||
The most efficient and sensitive test is [[ANAPC2|ANA]], ds-[[DNA]] [[antibodies]] specific test that is utilized for diagnosis of membranous glomerulonephritis. The [[gold standard test]] for the diagnosis of [[renal]] [[biopsy]]. | |||
== Diagnostic Study of Choice == | == Diagnostic Study of Choice == | ||
=== Gold standard/Study of choice: === | |||
* [[Biopsy|Renal biopsy]] is the gold standard test for the diagnosis of membranous glomerulonephritis<ref name="pmid27777266">{{cite journal |vauthors=De Vriese AS, Glassock RJ, Nath KA, Sethi S, Fervenza FC |title=A Proposal for a Serology-Based Approach to Membranous Nephropathy |journal=J. Am. Soc. Nephrol. |volume=28 |issue=2 |pages=421–430 |date=February 2017 |pmid=27777266 |pmc=5280030 |doi=10.1681/ASN.2016070776 |url=}}</ref> | |||
===== | * The complete [[blood count]], [[urinalysis]], 24 hour [[Urine culture|urine]] collection should be performed when: | ||
** The patient presented with signs of [[proteinurea]] and [[hypertension]]. | |||
** A positive test is detected in the patient. | |||
* [[Biopsy|Renal biopsy]] is the gold standard test for the diagnosis of membranous glomerulonephritis. | |||
'''The diagnostic study of choice for membranous glomerulonephritis is:''' | |||
* [[Biopsy|Renal biopsy]] under light and electron microscopy.<ref name="pmid27777266">{{cite journal |vauthors=De Vriese AS, Glassock RJ, Nath KA, Sethi S, Fervenza FC |title=A Proposal for a Serology-Based Approach to Membranous Nephropathy |journal=J. Am. Soc. Nephrol. |volume=28 |issue=2 |pages=421–430 |date=February 2017 |pmid=27777266 |pmc=5280030 |doi=10.1681/ASN.2016070776 |url=}}</ref> | |||
** Light microscopy, electron dense microscopy and immunofluorescence are performed on the renal biopsy sample. | |||
* Other tests include | |||
** [[Complete blood count|CBC]], | |||
** Urine analysis | |||
** [[Renal function tests]] | |||
** Serum [[Antinuclear antibodies|ANA]] | |||
** [[Complement system|Serum complement profile]] | |||
** Antistreptolysin-O titres | |||
** [[Hepatitis B]] and [[Hepatitis C]] | |||
** Blood cultures | |||
** Serum and urine [[electrophoresis]] | |||
* These tests must be performed when a patient presents with [[anorexia]], [[malaise]], [[edema]], [[Chronic hypertension causes|secondary hypertension]] and [[Oliguria|oliguria.]] | |||
=== | ===== Diagnostic Test: ===== | ||
* [Biopsy] | * [[Biopsy|Renal biopsy]] is confirmatory of membranous glomerulonephritis.<ref name="pmid27777266">{{cite journal |vauthors=De Vriese AS, Glassock RJ, Nath KA, Sethi S, Fervenza FC |title=A Proposal for a Serology-Based Approach to Membranous Nephropathy |journal=J. Am. Soc. Nephrol. |volume=28 |issue=2 |pages=421–430 |date=February 2017 |pmid=27777266 |pmc=5280030 |doi=10.1681/ASN.2016070776 |url=}}</ref> | ||
{| class="wikitable" | |||
{| | ! style="background:#4479BA; color: #FFFFFF;" align="center" + |Stage | ||
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Glomerular Basement Membrane | |||
! style="background: # | ! style="background:#4479BA; color: #FFFFFF;" align="center" + |Immunofluorescence | ||
! style="background: #4479BA; color: #FFFFFF; | ! style="background:#4479BA; color: #FFFFFF;" align="center" + |Electron Microscopy | ||
! style="background: #4479BA; color: #FFFFFF; | |- | ||
| style="background:#DCDCDC;" align="center" + |Stage 1 | |||
| style="background:#F5F5F5;" align="center" + |Normal or slightly thickned BM | |||
| style="background:#F5F5F5;" align="center" + |Fine granular IgG, C3 | |||
| style="background:#F5F5F5;" align="center" + |Scattered small subepithelial electron dense deposits no foot effacement | |||
|- | |- | ||
| style="background:#DCDCDC;" align="center" + |Stage 2 | |||
| style="background: # | | style="background:#F5F5F5;" align="center" + |Moderately thickened BM with spikes and vacuolization | ||
| style="background: # | | style="background:#F5F5F5;" align="center" + |Granular IgG, C3 | ||
| style="background:#F5F5F5;" align="center" + |Diffuse spikes due to subepithelial deposits, diffuse foot process effacement | |||
|- | |- | ||
| style="background:#DCDCDC;" align="center" + |Stage 3 | |||
| style="background: #DCDCDC; | | style="background:#F5F5F5;" align="center" + |Moderately thickened BM residual spikes and vacuoles | ||
| style="background: # | | style="background:#F5F5F5;" align="center" + |Chain like appearance IF, coarsely granular IgG, C3 | ||
| style="background:#F5F5F5;" align="center" + |Intramembraneous deposits, spikes, neomembrane formation and diffuse foot process effacement | |||
|- | |||
| style="background:#DCDCDC;" align="center" + |Stage 4 | |||
| style="background:#F5F5F5;" align="center" + |Markedly thick GBM, few spikes, vacoules and glomerulosclerosis | |||
| style="background:#F5F5F5;" align="center" + |Focal IgG, C3 | |||
| style="background:#F5F5F5;" align="center" + |Sclerotic GBM, few deposits and lacunae | |||
|} | |} | ||
===== Diagnostic | ===== Sequence of Diagnostic Studies ===== | ||
The | The urinalysis and comprehensive chemistry panel should be performed when:<ref name="pmid21566055">{{cite journal |vauthors=Qin W, Beck LH, Zeng C, Chen Z, Li S, Zuo K, Salant DJ, Liu Z |title=Anti-phospholipase A2 receptor antibody in membranous nephropathy |journal=J. Am. Soc. Nephrol. |volume=22 |issue=6 |pages=1137–43 |date=June 2011 |pmid=21566055 |pmc=3103733 |doi=10.1681/ASN.2010090967 |url=}}</ref> | ||
* The patient presented with signs of hypertension and proteinurea | |||
* Complete blood count | |||
* The patient presented with | * Urinaylsis | ||
* A positive [ | * A positive [[ANA]], anti [[DsDNA virus|dsDNA]] suggest the diagnosis of membranous glomerulonephritis | ||
* To confirm the diagnosis we do [[renal biopsy]] | |||
=== Diagnostic Criteria === | === Diagnostic Criteria === | ||
*There are no established criteria for the diagnosis of membranous glomerulonephritis. | |||
*There are no established criteria for the diagnosis of | |||
==References== | ==References== | ||
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{{WH}} | {{WH}} | ||
{{WS}} | {{WS}} | ||
[[Category:Nephrology]] | |||
[[Category:Up-to-date]] |
Latest revision as of 22:41, 29 July 2020
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Syed Ahsan Hussain, M.D.[2] Jogeet Singh Sekhon, M.D. [3]
Overview
The most efficient and sensitive test is ANA, ds-DNA antibodies specific test that is utilized for diagnosis of membranous glomerulonephritis. The gold standard test for the diagnosis of renal biopsy.
Diagnostic Study of Choice
Gold standard/Study of choice:
- Renal biopsy is the gold standard test for the diagnosis of membranous glomerulonephritis[1]
- The complete blood count, urinalysis, 24 hour urine collection should be performed when:
- The patient presented with signs of proteinurea and hypertension.
- A positive test is detected in the patient.
- Renal biopsy is the gold standard test for the diagnosis of membranous glomerulonephritis.
The diagnostic study of choice for membranous glomerulonephritis is:
- Renal biopsy under light and electron microscopy.[1]
- Light microscopy, electron dense microscopy and immunofluorescence are performed on the renal biopsy sample.
- Other tests include
- CBC,
- Urine analysis
- Renal function tests
- Serum ANA
- Serum complement profile
- Antistreptolysin-O titres
- Hepatitis B and Hepatitis C
- Blood cultures
- Serum and urine electrophoresis
- These tests must be performed when a patient presents with anorexia, malaise, edema, secondary hypertension and oliguria.
Diagnostic Test:
- Renal biopsy is confirmatory of membranous glomerulonephritis.[1]
Stage | Glomerular Basement Membrane | Immunofluorescence | Electron Microscopy |
---|---|---|---|
Stage 1 | Normal or slightly thickned BM | Fine granular IgG, C3 | Scattered small subepithelial electron dense deposits no foot effacement |
Stage 2 | Moderately thickened BM with spikes and vacuolization | Granular IgG, C3 | Diffuse spikes due to subepithelial deposits, diffuse foot process effacement |
Stage 3 | Moderately thickened BM residual spikes and vacuoles | Chain like appearance IF, coarsely granular IgG, C3 | Intramembraneous deposits, spikes, neomembrane formation and diffuse foot process effacement |
Stage 4 | Markedly thick GBM, few spikes, vacoules and glomerulosclerosis | Focal IgG, C3 | Sclerotic GBM, few deposits and lacunae |
Sequence of Diagnostic Studies
The urinalysis and comprehensive chemistry panel should be performed when:[2]
- The patient presented with signs of hypertension and proteinurea
- Complete blood count
- Urinaylsis
- A positive ANA, anti dsDNA suggest the diagnosis of membranous glomerulonephritis
- To confirm the diagnosis we do renal biopsy
Diagnostic Criteria
- There are no established criteria for the diagnosis of membranous glomerulonephritis.
References
- ↑ 1.0 1.1 1.2 De Vriese AS, Glassock RJ, Nath KA, Sethi S, Fervenza FC (February 2017). "A Proposal for a Serology-Based Approach to Membranous Nephropathy". J. Am. Soc. Nephrol. 28 (2): 421–430. doi:10.1681/ASN.2016070776. PMC 5280030. PMID 27777266.
- ↑ Qin W, Beck LH, Zeng C, Chen Z, Li S, Zuo K, Salant DJ, Liu Z (June 2011). "Anti-phospholipase A2 receptor antibody in membranous nephropathy". J. Am. Soc. Nephrol. 22 (6): 1137–43. doi:10.1681/ASN.2010090967. PMC 3103733. PMID 21566055.