biliary diseases vascular diseases parasites tumors liver transplantation
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Liver Pathology 4:. Biliary diseases Vascular diseases Parasites Tumors Liver transplantation. Causes of Large Bile Duct Obstruction. Extrahepatic Biliary Atresia (EHBA). Reovirus 3 Rotavirus Immune targeting?. Loop of small intestine. Kasai Hepatic Portoenterostomy. EHBA Rx. - PowerPoint PPT PresentationTRANSCRIPT
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•Biliary diseasesBiliary diseases•Vascular diseasesVascular diseases•ParasitesParasites•TumorsTumors•Liver transplantationLiver transplantation
Liver Pathology 4:Liver Pathology 4:
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Causes of Large Bile Duct Obstruction
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Extrahepatic Biliary Atresia (EHBA)
•Reovirus 3•Rotavirus•Immune targeting?
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KasaiHepaticPortoenterostomy
Loop of smallintestine
EHBARx Liver Transplantation
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Primary Sclerosing Cholangitis (PSC)
ERCP: endoscopic retrograde cholangiopancreatography
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, fewer Crohn’s
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Mrs. Elizabeth Peacock
Primary Biliary Cirrhosis(PBC)
Guys’ Hospital ReportLondon, 1851
Addison & Gull
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PBC: Primary biliary cirrhosis----Chronic nonsuppurative destructive cholangitis
•middle-aged women+ AMA (anti-mitochondrial
antibodies); M2 subtype• Alkaline Phosphatase• IgM•AMA directed against inner mitochondrial membrane PDC-E2 (pyruvate dehydrogenase complex-E2)
florid bileduct lesion
bile duct
PDC-E2
HLAII
AMAT TT
•Assoc. with other autoimmunedis: e.g. RA, sicca, celiac, scleroderma
MolecularMimicry?
Gram –bacteria
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Vascular Disease &the Liver
•Veins•Sinusoids•Arteries
•Liver is often involved in heart disease or other outflow problems(“hepatic venousoutflow obstruction”)
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Budd-Chiari Syndrome (Hepatic venous outflow obstruction)
ascites
•oral contraceptives•coagulopathy (prot. S, C, factor V Leiden def., anti-cardiolipin Ab’s•tumor invasion of hep. V’s or IVC: renal cell CA + HCC•small vein disease: VOD
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Peliosis hepatis: blood lakes of the liver-HIV, C17-alkylated steroids (OC’s, anabolic steroids; systemic inflamm.
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Infarct: Arterial disease (PAN, ligation,chemoRx installation)Portal vein: Zahn infarct
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P.V.P.V.
Pylephlebitis: -perforated ulcer, -ruptured appendix, etc.
Pylephlebitis: -perforated ulcer, -ruptured appendix, etc.
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Schistosomiasis: Pre-sinusoidal, intrahepatic portal hypertension
(Symmers’ “clay pipestem fibrosis”)
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pancreas
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LIVER-CELL ADENOMA-oral contraceptives-hepatocyte nuclear factor 1α (HNF-1α)
mutations-benign hepatocytes, bld vessels, NO b.d.’s
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FOCAL NODULAR HYPERPLASIA (FNH)-malformation: central scar with artery, outgrowth of cirrhosis-like mass
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HCC
•75% of pts have cirrhosis•75% are serum AFP +•Risks: Cirrhosis due to HBV, HCV, alcohol, hemochromatosis•Invades veins: portal vein/hepatic vein/IVC-to lungs
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FIBROLAMELLAR Ca: young, no risks-better prognosis with resection/tx
Nocirrhosis
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Cholangiocarcinomaassociated with:•Liver flukes: -Clonorchis sinensis -Opisthorcis viverrini
•PSC•Gallstone disease, hepatolithiasis
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Liver Transplantation
•Cirrhosis -HBV, HCV• PBC• PSC• Extrahepatic biliary
atresia• AFLD/NAFLD•Metabolic disorders
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Portal tract
HLA II
T
Acute Rejection
BD
endothelium
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1. Acute rejection: triad2. Preservation injury
(ischemia/reperfusion)3. CMV hepatitis
4. Recurrent original disease5. De novo autoimmune hepatitis6. Chronic rejection
6 mos.
inflammation
bile duct damageendotheliitis
Liver Transplantation PathologyLiver Transplantation Pathology
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DameSheila Sherlock
The Royal FreeHospitalLondon, U.K.
“Diseases of the Liver & Biliary System”
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Peter J. Scheuer Hans Popper
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Peter J. Scheuer, M.D.
Royal Free HospitalProf. of Histopathology
“Liver Biopsy Interpretation”-1st Edition: 1968-7th Edition: 2005
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