Glomerular diseases Flashcards
Tea colored urine 2 weeks after URI in child
Postinfectious glomerulnephritis
Granular immune complex deposition on IF + hypercellular glomeruli
Postinfectious glomerulnephritis
Anti-DNAse B titer
Postinfectious glomerulnephritis
Increased serum IgA + IC deposits in mesangium
IgA nephropathy (Berger disease)
Palpable purpura on back of arms and legs + abdominal pain + IgA nephropathy
Henoch-Schonlein purpura vasculitis
Hemoptysis + hematuria + anti-GBM antibodies
Goodpasture syndrome
Linear pattern of IgG deposition on IF
Goodpasture syndrome
Nephritis + deafness + cataracts
Alport syndrome
Split basement membrane on EM
Alport syndrome (defect in collagen IV in BM)
ANCA+ nephritis
Pauci-immune RPGN (p-ANCA)
Granulomatosis w/ polyangiitis (Wegener) (c-ANCA)
Crescent formation in glomeruli on LM
RPGN
Nephritis w/ +ANA or +anti-ds-DNA
Lupus nephritis
Nephritis + hemoptysis + upper airway inflammation
Granulomatosis w/ polyangiitis (Wegener)
Treatment of most glomerular diseases
Steroids + ACE + statins
Treatment postinfectious glomerulonephritis
Self-limited, supportive
Treatment Goodpasture syndrome
Plasmapheresis, steroids
Treatment Alport syndrome
ACE, renal transplant may be complicated by Alport-related Goodpasture syndrome
Treatment lupus nephritis
Steroids, ACE, statin
Treatment Wegener’s
Steroids, cytotoxic agents (cyclophosphamide)
S/Sx nephrotic syndrome
Must have (3): Proteinuria >3.5 g/day Hypoalbuminemia Edema May have: HLD HTN Hypercoagulability
MC nephrotic syndrome in children
Minimal change disease
MC nephrotic syndrome in adults
FSGS
Treatment minimal change disease
Steroids
Nephrotic + effacement of foot processes
Minimal change disease
Nephrotic + HIV
FSGS
Nephrotic + Hep B
Membranous
Possibly Membranoproliferative
Nephrotic + Hep C
Membranoproliferative
Possibly Membranous
Nephrotic + SLE
Membranous
Membranoproliferative
Nephrotic + subacute bacterial endocarditis
Membranoproliferative
Nephrotic + mesangial nodules
Diabetic nephropathy (Kimmelstiel-Wilson nodules)
Nephrotic + “tram-track” doubled BM + subendothelial IgG deposits
Membranoproliferative
Nephrotic + “spike and dome” BM thickening (subepithelial IC)
Membranous
Apple-green birefringence w/ Congo red stain under polarized light
Amyloidosis
Nephrotic + segmental sclerosis and hyalinosis on LM
FSGS
UA: hyaline casts
Normal patient w/ concentrated urine
UA: red cell casts
Glomerular bleeding:
Acute glomerulonephritis
Vasculitis
UA: white cell casts
Tubular interstitial disease
Acute pyelonephritis
Other glomerular disorders
UA: epithelial cell casts
Acute glomerulonephritis
UA: granular casts / muddy brown casts
Acute tubular necrosis