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64 Cards in this Set

  • Front
  • Back
three histologic fx of hepatitis
1. Portal-based portal inflammation
2. Interface hepatitis = piecemeal necrosis
3. Focal necrosis
– Foci of lobular inflammation & necrosis of single hepatocytes
how diagnose hep A, how determine if immunity
IgM HAV for diagnosis
IgG HAV for immunity determination
type of virus : dna vs. rna HAV
ss RNA, picornovirus
type of virus: HBV
partly ds DNA
treatment for HBV
α-interferon, lamivudine
how diagnose HBV
HBsAg or HBcAg
see this, think
see this, think
ground glass hepatocytes: hep b (proliferating ER)
two histo fx for HBV
sanded nuclei (pink nuclear inclusions with HBcAg in it
ground glass cytoplasm (contains HBsAg and HBcAg)
histol fx for HCV
fat, lymphoid aggregates and bile duct damage
if see fat, lymphoid aggregates and bile duct damage, think
HCV
ab for AIM hepatitis
ANA, ASMA, LKM1, soluble liver antigen or LP (liver
pancreas) antibodies
trx for AIM
only hepatitis that responds to steroids
histo fx for AIm hepatitis
Marked interface inflammation with bridging necrosis (PT to CV)
and plasma cells!!!
how detect hep D
can do ihc
histologic fx of cholestasis
– Portal based damage
– Dilated bile canaliculi with bile plug
– pseudoxanthomatous change or feathery
degeneration
• Bile duct injury and loss
• Ductular (cholangiolar) proliferation
• Cholestatic Mallory bodies, zone I
• Jigsaw cirrhosis (segmental disease)
clinical findings for cholestatic dz
Elevated Alk phos, bilirubin, GGT
– Pruritis, jaundice, pale stools
ihc in cholestasis
perivenular hepatocytes are CK7+
two copper stains for cholestasis
Rhodanine and victoria blue
clinical associations PBC
women, middle age, HLA DR type, AIM associations (scleroderma, Sjogren's)
often AMA positive
elevated IgM
what
what
primary biliary cirrhosis
-Cholestasis
• Florid duct lesion
– Bile duct injury
• Granulomas
clinical findings/associations with PSC
males, UC, cholangioca,
beading on ERCP
what
what
Periductal fibrosis
– Ductopenia
macrovescicular steatosis causes (just read)
Alcohol
– Diabetes
– Drugs
– Obesity
– Deficient diet (TPN)
reye's
fatty liver and encephalopathy
kids, flu-like illness, asa
microvesicular/no inflammat
findings of steatohepatitis
Steatosis
Ballooned hepatocytes
Mallory-Denk bodies
– Zone 3 (perivenular/pericentral) fibrosis
-Inflammed lobules (neutrophils)
Megamitochondria
what are mallory bodies composed of
intermediate filaments, p62 and ubiquitin positive
what are megamitochondria and where found
in steatohepatitis, eosinophilic globules
what is amiodarone a/w and what specific histologic findings
steatohepatitis
Foamy granular hepatocytes from
phospholipids which show lysosome
inclusions by EM
histologic findings of acetaminophen
hepatocellular necrosis with inflammation
see granulomas in liver think
infection MAI
cholestasis - PBC
see this, what to think
see this, what to think
Q fever, ring granuloma, Coxiella burnetii
what
what
echinococus, laminated layer (can be gms +)
what
what
echinococcus, scolex, gms+ hooklets, birefringent
describe molecular allelic options for alpha 1 antitrypsin deficiency
M - normal allele
PiS and PiZ- mutated alleles

PIZZ is bad
mutations of heretidary hemochromatosis
HFE gene mutations
2 most common
– C282Y, highest iron overload
- H63D
sx of hereditary hemochromatosis
Cirrhosis, diabetes and skin pigmentation
Hereditary hemochromatosis inheritance pattern
autosomal recessive
other HH mutations
• 1 HFE
• 2A hemojuvelin- (kids)
• 2B hepcidin (kids)
• 3 transferrin receptor2
• 4 ferroportin
if see iron-free foci in HH, what should you think of
HCC
wilson dz mutation
Mutated ATP7B gene, a copper transport protein in Golgi with accumulation of copper in liver and other organs
tests for wilson dz
↓Cerruloplasm—not sensitive or specific
– ↑Hepatic copper concentration— best test
histol fx of wilson's dz and stains
Steatosis, hepatitis, glycogenated nuclei, abnormal mitochondria
Mallory hyaline, copper by Rhodanine or
Orcein stains
see black pigment in liver think
dubin-johnson syndrome
mutation of dubin-johnson syndrom
cMOAT/MRP2 gene mutation
lab finding in dubin-johnson syndrome
isolated conjugated hyperbilirubinemia
histochemical stains to confirm dubin johnson syndrome
PASD and Fontana Masson stain
pigment
ischemic affects what zone first
zone 3 necrosis
gross pathology of ischemic liver
nutmeg liver (note can see in tylenol toxicity)
histologic findings in budd-chiari
Sinusoidal dilation and hepatocyte atrophy
what is hepatoportal sclerosis
weird process by which portal regions are abnormally close to central veins, non cirrhotic
see nodular regenerative hyperplasia on histology, think what clinically
portal HTN

recall: vague nodules, no fibrosis
hepatic adenoma: clinical associations
ocps
glycogen storage dzs
treatment for hepatic adennoma
surgery to prevent bleeding/rupture
key fx of hepatic adenoma
1-2 layers thick, no PT, dilated sinusoids
histologic fx of FNH
central stellate scar**
liver divided into nodules by thickwalled arteries in fibrous septa
ductular proliferation (CK7+)
what is a high grade dysplastic nodule in liver
in cirrhotic liver, a nodule >1 cm
background and prognosis in fibrolamellar HCC
noncirrhotic background
better prognosis
what's inside polygonal cells of fibrolamellar HCC
- mito in cytoplasm
- pale body inclusions
ddx of central scar in liver
fnh, fibrolamellar hcc
ihc in cholangioca
Mucicarmine+, CK7+, HepPar1-
infectious a/w cholangioca
Clonorchis sinensis, Opisthorchis),
big thing for staging of hcc and cholangioca
hcc - size (5cm)
cholangioca: periductal invasion
what, ihc
what, ihc
hemangioma (dendritic) (intracytoplasmic
lumina/vacuoles w RBCs)
CD34, Factor VIII
what, ihc
what, ihc
epithelioid hemangioma (epithelial cells occlude vessels)
CD34, Factor VIII