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53 Cards in this Set

  • Front
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Nephritic vs nephrotic
proteinuria > 3.5 g/day
Nephrotic syndrome
Nephritic vs nephrotic
frothy urine, hyperlipidemia, fatty casts, edema
nephrotic syndrome
Nephritic vs nephrotic
Which is associated with thromboembolism and increased risk of infection and why?
nephrotic syndrome

hypercoaguable state due to antithrombin III loss in urine
increased risk of infection due to loss of immunoglobulins
Nephritic vs nephrotic
which is an inflammatory process?
nephritic syndrome
Nephritic vs nephrotic
when it involves glomeruli it leads to hematuria and RBC casts in urine
Nephritic syndrome
Nephritic vs nephrotic
associated with azotemia, oliguria, hypertension (due to salt retention), and proteinemia (<3.5 g/day)
Nephritic syndrome
Focal segmental glomerulosclerosis
nephritic or nephrotic?
LM?
EM?
Associations?
Most common cause of Nephrotic syndrome in adults
LM - segmental sclerosis and hyalinosis
EM - effacement of foot processes similar to minimal change disease
Associated with HIC infection, heroin abuse, massive obesity, interferon treatment, and chronic kidney disease due to congenital absence or surgical removal
Membranous nephropathy
nephritic or nephrotic?
LM?
EM?
IF?
What disease has a kidney presentation of membranous nephropathy?
Second most common cause of primary nephrotic syndrome in adults. Can be idiopathic or caused by druga, infections, SLE, solid tumors
LM - diffuse capillary and GBM thickening
EM - "spike and dome" appearance with subepithelial deposits
IF - granular
SLE's nephrotic presentation
Minimal Change Disease
nephritic or nephrotic?
LM?
EM?
What is lost?
Most common in?
Tx?
Nephrotic syndrome that may be triggered by a recent infection or an immune stimulus.
LM - normal glomeruli
EM - foot process effacement
Selective loss of albumin, not globulins, caused by GBM polyanion loss
Most common in children
Responds to corticosteroids
Amyloidosis
nephritic or nephrotic?
LM?
Associations?
Nephrotic syndrome
LM - congo red stain shows apple green birefringence under polarized light
Associated with chronic conditions (e.g. multiple myeloma, TB, RA)
Membranoproliferative glomerulonephritis Type I
nephritic or nephrotic?
EM?
IF?
Associations?
Normally nephrotic can present as nephritic
EM - "tram-track" appearance due to GBM splitting caused by mesangial ingrowth
IF - subendothelial immune complex deposits with granular IF
associated with HBV and HCV
Membranoproliferative glomerulonephritis Type II
nephritic or nephrotic?
presentation?
Associations?
Nephrotic syndrome
intramembranous immune complex deposits "dense deposits"
associated with C3 nephritic factor
Acute poststreptococcal glomerulonephritis
Nephritic or nephrotic?
LM?
EM?
IF?
Most common in?
Presentation?
Nephritic syndrome
LM - glomeruli enlarged and hypercellular, neutrophils, "lumpy-bumpy" appearance
EM - subepithelial immune complex bumps
IF - ganular appearance due to IgG, IgM, and C3 deposition along GBM and mesangium
most frequently seen in children
presents with peripheral and periorbital edema, dark urine, and HTN.
Resolves spontaneously
Rapidly progressive (cresenteric) glomerulonephritis
Acute poststreptococcal glomerulonephritis
Nephritic or nephrotic?
LM?
IF?
Diseases?
nephritic syndrome
LM and IF - crescent-moon shape. Crescents consist of fibrin and plasma proteins with glomerular parietal cells, monocytes, and macrophages
Sevreal disease processes may result in this pattern:
goodpasure's syndrome, Wegner's granulomatosis, Microscopic polyangitis
type II hypersensitivity; antibodies to GBM and alveolar basement membrane - linear IF; hematuria/hemoptysis
Goodpasture's syndrome
Granulomatosis with polyangiitis, c-ANCA
Wegner's
p-ANCA and cresenteric glomerulonephritic
Microscopic polytangiitis
Diffuse proliferative glomerulonephritis
Acute poststreptococcal glomerulonephritis
Nephritic or nephrotic?
LM?
EM?
IF?
Cause?
Nephritic syndrome
LM - "wire-looping" of capillaries
EM - subendothelial and sometimes intramembranous IgG-based immune complexes often with C3 deposition
IF - granular
due to SLE or MPGN
most common cause of death in SLE
Berger's Disease
Acute poststreptococcal glomerulonephritis
Nephritic or nephrotic?
LM?
EM?
IF?
Presentation?
Associations?
Nephritic syndrome
LM - mesangial proliferation
EM - mesangial immune complex deposits
IF - IgA-based immune complex deposits in mesangium
presents/flares with upper respiratory infection of acute gastroenteritis
related to henoch-schonlein purpura
mutation in type IV collagen - split basement membrane. X-linked
Alport syndrome
glomerulonephritis, deafness (and less commonly eye problems)
Alport syndrome
IgA nephropathy
Berger's disease
related to henoch schonlein purpura
berger's disease
wire looping of capillaries
diffuse proliferative glomerulonephritis
Diseases with IgG based immune comlexes
diffuse proliferative glomerulonephritis (IgG and C3)
acute poststreptococcal glomerulonephritis (IgG, IgM, and C3)
diseases with Crescent moon shape
rapidly progressive glomerulonephritis:
goodpasture's
Wegner's
Microscopic polyangiitis
diseases with subepithelial deposits
acute poststreptococcal glomerulonephritis and membranous nephropathy
mesangial IF
Berger's disease
lumpy bumpy light microscopy
acute poststreptococcal glomerulonephritis
diseases with granular immunoflourescence
Acute streptococcal glomerulonephritis
membranoproliferative glomerulonephritis
membranous nephropathy
Diabetic glomerulonephroathy
Acute poststreptococcal glomerulonephritis
Nephritic or nephrotic?
description?
LM?
nephrotic syndrome
nonenzymatic glycosylation of glomerular basement membrane - increases permeability, thickening
NEG of efferent arterioles causes increased glomerular filtration rate and mesangial expansion
LM - mesangial expansion, GBM thickening, eosinophilc nodular glomerulosclerosis
mesangial expansion and GBM thickening
diabetic glomerulonephropathy
eosinophilic nodular glomerulosclerosis
diabetic glomerulonephropathy
nonenzymatic glycosylation
diabetic glomerulonephropathy
Tram-track appearance
membranoproliferative glomerlonephritis
more prevelant in type I
diseases with subendothelial immune complex deposists
diffuse proliferative glomerulonephritis
membranoproliferative glomerlonephritis type I
intramembranous immune complex deposits
membranoproliferative glomerlonephritis type II
diffuse proliferative glomerulonephritis can sometimes have intramembrabous
SLE
diffuse proliferative glomerulonephritis
membranous nephropathy
HBV, HCV
membranoproliferative glomerlonephritis type I
C3 nephritic factor
membranoproliferative glomerlonephritis type II
congo red stain shows apple-green birefringence under polarized light
amyloidosis
associted with chronic disease (multiple myeloma, TB, RA)
amyloidosis
foot process effacement
minimal change disease
focal segmental glomerulosclerosis
selective loss of albumin
minimal change disease
associated with recent infection
minimal change disease
poststreptococcal glomerulosclerosis
spike and dome appearance on electron microscopy
membranous nephropathy
most common cause of nephrotic syndrome in adults
focal segmental glomerulosclerosis
Name the disease/diseases when you will see these CASTS in the urine:
RBC Casts
Glomerulonephritis, ischemia, or malignant HTN
Name the disease/diseases when you will see these CASTS in the urine:
WBC casts
Tubulointerstitial inflammation, acute pyelonephritis, transplant rejection
Name the disease/diseases when you will see these CASTS in the urine:
fatty casts ("oval fat bodies")
Nephrotic syndrome
Name the disease/diseases when you will see these CASTS in the urine:
granular ("muddy brown") casts
acute tubular necrosis
Name the disease/diseases when you will see these CASTS in the urine:
waxy casts
advanced renal disease/chronic renal failure
Name the disease/diseases when you will see these CASTS in the urine:
hyaline casts
nonspecific, can be normal finding