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GI Organ Pathology
Downstate > MS2 GI Block > Liver, Pancreas, Gallbladder Diseases
93
Medical
Graduate
12/18/2010

Additional Medical Flashcards

 


 

Cards

Term
what serology is used to detect hepA
Definition
HAV IgM
Term
polyarteritis nodosa, glomerular disease; dx?
Definition
chronic hepB
Term
15% resolves; 85% chronic (risks: older age, male, alcohol, HIV, fatty liver); dx?
Definition
hepC
Term
15-40yo, pregnant women in 2nd to 3rd trimester; what is she at risk for and what serological tests do you run to confirm?
Definition
hepE; look for RNA, HCV IgM and IgG
Term
HBsAg, HBcIgM, HBeAg; what stage of hepB?
Definition
acute
Term
porphyria cutanea tarda, cryoglobulinemia, glomerulonephritis, lichen planus, diabetes; dx?
Definition
chronic hepC
Term
which antibody is present during the window period (4-6mo) of hepB infection?
Definition
HBcIgM
Term
HBsAb, HBcIgG, HBeAb; what stage of hepB?
Definition
resolved
Term
HBsAg, HBcIgG, HBeAg/HBeAb; what stage of hepB?
Definition
chronic
Term
HBsAg, HBcIgG, HBeAb; what stage of hepB?
Definition
carrier
Term
serology for reactivation of hepB?
Definition
HBsAg, HBcIgM/HBcIgG, HBeAb/HBeAg
Term
what serology do you expect for a pt who is vaccinated for hepB?
Definition
HBsAb only
Term
HBsAg > 6mo; dx?
Definition
chronic hepB
Term
HCV RNA can be detected within __. anti-HCV Ab can be detected within ___.
Definition
1-3 wks; 3-15wks
Term
chronic HCV serology
Definition
no antibodies (only cycling RNA)
Term
In what diseases do the following patterns of damage occur?
1. pan-acinar
2. periportal
3. pericentral
Definition
1. pan-acinar: fulminant injury from chemicals, drugs, or virus
2. periportal: chronic injury from chronic viral hepatitis, autoimmune hepatitis, or primary billiary cirrhosis
3. pericentral: chemical toxicity, ischemia
Term
liver biopsy shows ground glass eosinophilic cytoplasm, and stains positive for orcein and fuchsin; dx?
Definition
hepB
Term
pathogenesis of fulminant hepatitis
Definition
liquefaction of hepatocytes, collapse of reticulin framework, little inflammation
Term
pt presents with hepatitis, showing mild steatosis, inflammatory infiltrates in bile duct, and sinusoidal lymphocytosis; dx?
Definition
hepC
Term
grading for hepatitis measures ___
staging for hepatitis measures ___
Definition
grading: inflammation
staging: fibrosis
Term
liver disease with systemic viral infection showing... 1. sinusoidal lymphocytosis; dx? 2. pan-acinar damage; dx? 3. bland necrosis; dx?
Definition
1. EBV 2. CMV 3. HSV
Term
deposition of ova within hepatocytes, granuloma formation, eosinophilic infiltration, fibrosis and destruction of portal vein branches leading to non-cirrhotic portal hypertension; dx?
Definition
Schistosomiasis
Term
chronic hepatitis due to chinese liver flukes migrate up biliary tree and inhabit intrahepatic biliary ducts; dx?
Definition
clonorchiasis
Term
what characterizes regenerating nodules histologically?
Definition
plates are 2-cell thick
Term
diseases that show... 1. macronodular cirrhosis 2. micronodular cirrhosis
Definition
1. acute: viral hepatitis, drug reaction, chemical toxicity; 2. chronic: alcohol; (Wilson's and hemachromatosis can be macro or micro)
Term
1. Councilman bodies are found in...
2. Mallory bodies are found in...
Definition
1. any early hepatitis (viral, alcoholic, etc.)
2. alcoholic hepatitis
Term
what is the histological hallmark of chronic hepatitis?
Definition
piecemeal necrosis (i.e. interface hepatitis)
Term
What is the pathogenesis of 1. alcoholic hepatitis (2) 2. drug-induced hepatitis (3)
Definition
1. elevated NADH leads to more fat synthesis; acetaldehyde causes microtubular defects, depletes free radical scavengers, and increases lipid peroxidation 2. electrophilic radicals that inhibit cell function; free radicals cause lipid peroxidation; P450 forms TFA metabolite that reacts with hepatocellular proteins to make auto-neoantigens
Term
young woman presents with hepatitis; she has HLA-DR3 and HLA-DR4; serology: ANA+, SMA+, anti-actin+; dx?
Definition
type I autoimmune hepatitis
Term
Mediterranean child presents with hepatitis; he has HLA-DRB1 and -DRQ1; serology: anti-LKM+; dx?
Definition
type II autoimmune hepatitis
Term
pt presents with left heart failure; what do you expect to see in a liver biopsy?
Definition
no congestion, zone 3 necrosis
Term
pt presents with right heart failure; what do you expect to see on a liver biopsy? gross?
Definition
zone 3 congestion, "nutmeg" liver
Term
chronic occlusion of a large hepatic vein leads to perivenular fibrosis and lysed RBCs; dx?
Definition
Budd-Chiari syndrome
Term
causes of vaso-occlusive disease (VOD) (5)
Definition
hepatoxic alkaloids, Jamaican bush tea, chemotherapy drugs, immunosuppressants, radiation patients
Term
1. perivenular/sinusoidal fibrosis with neutrophilic infiltrates; dx?
2. piecemeal necrosis, lobular collapse with plasma cell infiltrates; dx?
3. piecemeal necrosis, lobular collapse with T cell infiltrates; dx?
Definition
1. alcoholic hepatitis
2. autoimmune hepatitis
3. viral hepatitis
Term
what is the pathogenesis behind alcoholic steatosis?
Definition
acetaldehyde disrupts microtubule formation --> cannot secrete lipoprotein/fat
Term
what 3 systemic features characterize cirrhosis?
Definition
systemic vasodilation, hyperdynamic circulation, sodium avidity
Term
what are pre-hepatic causes of portal hypertension?
Definition
venous thrombosis, increased arterial blood flow
Term
what is a sinusoidal intra-hepatic cause of portal hypertension?
Definition
cirrhosis
Term
what is a post-sinusoidal intra-hepatic cause of cirrhosis?
Definition
VOD
Term
NO is [increased/decreased] systemically and [increased/decreased] in the liver
Definition
increased; decreased
Term
what complications of cirrhosis makes you a candidate for liver transplant?
Definition
HRS, bacterial peritonitis
Term
what are the criteria for hepatorenal syndrome (HRS)?
Definition
serum creatinine > 1.5mg/dl or creatinine clearance 40ml/min; oliguria; absence of: infection, shock, response to treatment, proteinuria
Term
how would an annular pancreas present?
Definition
adult, small bowel obstruction
Term
40-70yo, M>F; elevated serum amylase, normal serum lipase, normal to low urine amylase; no clinical symptoms; incidental finding
Definition
macroamylasemia
Term
recurrent pulmonary infections, green lungs, pancreatitis, steatorrhea, malnutrition, infertility; elevated sweat Cl- (sensitive); histology: multicystic, dilated ducts, inflammation, atrophy, and fibrosis of acini, Islets are spared
Definition
cystic fibrosis
Term

 pathogenesis of CF

 

Definition
CFTR is mutated --> Cl- secretion is impaired --> dry mucus secretion that plugs up ducts --> cannot secrete pancreatic enzymes, sperm, lung lubricants, etc.
Term
elevated TIBC, elevated ferritin, elevated Fe content in liver biopsy; large, brown pancreas (early) to atrophic, fibrotic pancreas (late); bronze diabetes, hypogonadism, cardiomegaly, arthralgias
Definition
hemochromatosis (primary)
Term
caused by thalassemia, hemolytic anemia, multiple transfusions
Definition
hemochromatosis (secondary)
Term

 

kwashiokor; how does it present histologically?

 

Definition
malnutrition in tropical regions; atrophy and fibrosis of pancreas without inflammation 
Term
30-70yo; acute abdomen; can present as edematous (most common, generally benign) or hemorrhagic (high risk of necrosis); complications: hypocalcemia, sepsis-like syndrome, jaundice; elevated serum lipase, leukocytosis, hyperglycemia
Definition
acute pancreatitis
Term

pathogenesis of acute pancreatitis

 

Definition
most common causes are gallstones and alcohol; premature activation of trypsin and pancreatic enzymes leads to fat necrosis, FA+calcification= saponification, and pseudocyst formation
Term
genetics of idiopathic acute pancreatitis 
Definition
PRSS1 mutation (autosomal dominant) causes trypsin to be resistant to inactivation; SPINK1 mutation creates a defective trypsin inhibitor
Term
40yo, male; recurrent abdominal pain, maldigestion, diabetes; histology: fibrosis, necrosis, atrophy, loss of parenchyma (in tropical areas, calcification predominates); gross: enlarged pancreas then shrunken pancreas; low fecal elastase
Definition
chronic pancreatitis
Term
50-70yo, female; large, painless, multiloculated cystic tumors in body or tail; dx? what types are there and which one is more malignant?
Definition
cystadenoma; mucinous and serous types; mucinous is more malignant, and serous is usually benign
Term
cystadenoma: mucinous vs. serous
Definition
mucinous is composed of columnar epithelium and malignant; serous is composed of cuboidal epithelium and benign
Term
60-80yo, black male; hx: smokes, eats meat, diabetic; gnawing epigastric pain that radiates to the back, painless jaundice, Courvoisier's gallbladder, Trousseau's thrombophlebitis, anorexia, weight loss
Definition

pancreatic carcinoma; most common are ductal adenocarcinomas; metastasizes to lungs and liver

 

 

Term
most common, elevated insulin, usually an adenoma
Definition
beta-cell tumor
Term
50yo male; elevated HCl; hypercalcemic, esophagitis, diarrhea; which neoplasm do you suspect?
Definition
gastrinoma
Term
40-70yo female; elevated serum glucose, erythema, anemia, thrombosis, necrotizing migratory erythematous rash
Definition
glucagonoma
Term
how would a somatostatinoma present? 
Definition
delta cell tumor; rare; gallstones, steatorrhea, low HCl, mild diabetes
Term
explosive diarrhea; Verner-Morrison syndrome; high serum glucose, high Ca+; low K+, low HCl
Definition
VIPoma
Term
elevated 5HT and motilin; diarrhea; facial flush, hypotension, periorbital edema, lacrimation
Definition
carcinoid
Term
MEN1 mutation causes adenomas in what 3 organs?
Definition

3P syndrome: pituitary, parathyroid, pancreas adenomas

Term
how does acute cholestasis characterized vs. chronic cholestasis?
Definition

acute: perivenular damage; bile accumulates in hepatocytes and Kupffer cells; bile thrombi; feathery degeneration

chronic: periportal damage; bile accumulates, extravasates; Cu accumulates; piecemeal necrosis, ductule proliferation, cholestasis rosettes; Mallory bodies

 

Term
40yo male; asymptomatic or abdominal pain, jaundice, fatigue, weight loss; post-chemotx; assc'd with UC; onion-ring fibrosis around bile ducts
Definition
primary sclerosing cholangitis (PSC)
Term
yellow to black composite gallstones, rarely pure
Definition
cholesterol gallstone
Term

1. stone in CBD; constant pain with fever, chills

2. constant pain without fever or leukocytosis

Definition

1. cholangitis

2. biliary colic

Term
gallbladder inflammation; asymptomatic but higher risk for complications: torsion, DM, vasculitis, trauma, burns
Definition
acute cholecystitis acalculus
Term
elderly men and DM pts; acute cholecystitis followed by ischemia of gallbladder wall and infection by gas-producing bacteria
Definition
emphysematous acute cholecystitis
Term
how can a gallstone present?
Definition
unremitting biliary pain that is worse within 1-2h of going to bed; little tenderness over the gallbladder; cholecystits/cholangitis/pancreatitis (depending on where the stone is lodged); empyema, hydrops, xanthogranulomas, porcelain gallbladder, limy bile
Term
occurs post-surgery due to biliary strictures
Definition
secondary biliary cirrhosis
Term
aggressive, late detection; 90% associated with gallstones; complication of chronic cholecystitis
Definition
gallbladder adenocarcinoma
Term
extrahepatic bile duct carcinoma located at the branchpoint between left and right hepatic ducts; indolent, sclerosis, can cause immediate obstruction; painless jaundice; risk factors: UC, PSC
Definition
Klatskin tumor
Term
>5cm, hemorrhage/necrosis is common; no central scar
Definition
liver cell adenoma
Term
<5cm, no hemorrhage; central stellate scar is common
Definition
focal nodular hyperplasia of liver
Term
eosinophilic inclusions, trabecular and acinar patterns; risk factors: hepB, hepC, cirrhosis, hemachromatosis, chemical carcinogens; can present as fibrolamellar variant (well circumscribed with central scar, young people, eosinophilic hepatocytes)
Definition
hepatocellular carcinoma
Term
young; Cu accumulation; liver and psychoneurological defects; Keyser-Fleischer ring; histology looks like viral hepatitis
Definition
Wilson's disease
Term
causes neonatal hepatitis, chronic hepatitis, cirrhosis, cholestasis, and eosinophilic inclusions
Definition
alpha 1-antitrypsin deficiency
Term
lots of mucin, shaped like biliary tree, feculent smelling, soft
Definition
brown stone
Term
Ca(HUCB)2
Definition
black stone
Term
50-55yo woman presents with pruritus; histology shows "half moon" bile ducts; serology is positive for anti-mitochondrial antibody; dx? pathogenesis?
Definition

primary biliary cirrhosis; autoimmune disorder with progressive destruction of interlobular and septal bile ducts with non-suppurative inflammatory reaction

 

Term
progressive non-specific chronic inflammation of intra- and extra-hepatic ducts
Definition
primary sclerosing cholangitis (PSC)
Term
how does bile duct paucity present clinically?
Definition
"elfin" face, Alagille's syndrome; jaundice, xanthomas in skin, bile in teeth
Term
pathogenesis of cholesterol gallstone formation
Definition

cholesterol supersaturates bile, becomes crystallized, combines with mucin to form a cholesterol gallstone; requires gallbladder hypomotility and reduced secretion of cholesterol

Term
anti-mitochondrial Ab
Definition
primary biliary cirrhosis
Term
ERCP+ and AMA-
Definition
primary sclerosing cholangitis (PSC)
Term
inflammation to due mechanical distension of walls, lysolecithin, and bacteria
Definition
acute cholecystitis calculus
Term
benign endpoint of ischemic obliteration; not a neoplasm
Definition
focal nodular hyperplasia of liver
Term
mutation in transport protein needed for Cu secretion (as ceruloplasmin) and Cu excretion (in bile); leads to Cu accumulation in liver, brain (basal ganglia), and eye
Definition
Wilson's disease
Term
codominant inheritance; impaired hepatic secretion of this protein leads to low serum levels
Definition
alpha 1-antitrypsin deficiency
Term
caused by chronic infection of biliary tree
Definition
brown stone
Term
triad for Budd-Chiari syndrome
Definition
hepatomegaly, ascites, abdominal pain
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