Buzzwords Flashcards
EM: primarily large sub epithelial deposit “humps” with normal foot processes
Post-Strep GN
LM: tram track appearance of GBM capillary walls
MPGN
“Spike and dome” on silver stain
Membranous nephropathy
EM: irregular electron dense structure in lamina with ribbon like appearance
dense deposit disease
Ribbon like appearance - C3 nephritic factor
Dense deposit disease
Diffuse effacement of podocytes
minimal change disease and focal segmental glomerusclerosis (FSGS)
EM: basket weave appearance
Alport syndrome
Hypercellularity
Post Strep GN
MPGN
Lupus nephritis
LM: glomerular crescents
RAPIDLY PROGRESSIVE GN disease:
- anti GBM Ab related diseases
- immune complex mediated crescent in glomerulonephritis
- pauci-immune crescentic GN
Linear pattern with IgG
Anti GBM Ab related disease- Goodpastures
Large kidneys
Hydronephrosis
Myeloma
ARF
PKD (polycystic kidney disease)
Gross morph: grain leather with normal to small kidneys
Arterionephrosclerosis (Benign Nephrosclerosis)
Histo path: Hyaline arteriolosclerosis
Arterionephrosclerosis
Diabetic nephropathy
Histo path: fibroelastic hyperplasia of larger arteries
Arterionephrosclerosis
Gross: flea bitten appearance
Malignant hypertension
LM: onion skin appearance of large arteries
Malignant hypertension
PE: abdominal bruit (rare)
Renal artery stenosis
Angiogram: “beaded” appearance of arteries
Renal artery stenosis
Later pathology of a depressed, pale grey scar
Embolic renal disease
Gross: “sponge like” appearance
Autosomal recessive PKD
Gross: no normal parenchyma visible on kidney due to immense number of cysts
autosomal dominant PKD
Autoantibodies detected at or genetic defects at ADAMTS13
Thrombotic thrombocytopenia purpura (TTP)
Gross: patchy or diffuse cortical necrosis
Thrombotic microangiopathies
Cysts at corticomedullary junction
Nephronophtisis (medullary cystic disease complex)
Gross: scarring and deformity at calyces and or pelvises: blunting out of papillae and deformity of calyces
Chronic pyelonephritis (also might consider hydronephrosis for blunting of papillae)
Histo path: “thyroidization” of tubules
Chronic pyelonephritis
Renal papillary necrosis
Analgesic nephropathy
Tubular epithelial cell injury
Acute tubular injury
Histo path: abnormal cells with numerous mitochondria
Oncocytoma
Can result due to trisomy 7, 16, or 17 or loss of Y chromosome
Papillary renal cell carcinoma
Invades renal vein
Clear cell renal cell carcinoma
Tumor with granular eosinophilic cytoplasm and increased mitochondria
Oncocytoma
Brown “muddy” casts
Acute tubular necrosis
c-ANCA
Wegener’s
p-ANCA
Microscopic polyangitis or Churg-Strauss if with eosinophilia, asthma, granulmatous
Congo red stain with Apple green biferengince
Amyloidosis
Transthyretin
Improperly folded mutant protein (amyloidosis)
Child eats hamburger later with GI/flu like that gets renal failure, oliguria, hematuria
Typical HUS (diarrhea +)