acute and chronic hepatitis: still important in 2018 john hart, … · 2018-05-21 · 5/21/2018 1...
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Acute and Chronic Hepatitis:
still important in 2018
John Hart, M.D.
Sections of
Surgical Pathology
& Hepatology
University of
Chicago
Acute Hepatitis
• “Lobular disarray”:
– Ballooned hepatocytes and acidophil bodies
– Individual or confluent hepatocyte dropout
– Zonal, bridging, or panlobular necrosis
– Sinusoidal inflammatory cells
– Prominent Kupffer cells (PAS/D stain)
– +/- cholestasis
• Mild portal inflammation
• No fibrosis
Clinical HistoryCase Courtesy of Dr. John Nixon
OSF St. Francis Hospital, Peoria, IL
• 21 year old male presented with fatigue, anorexia, and abdominal pain
• AST = 1135, ALT = 1196
• Serologic tests for HAV, HBV, and HCV are all negative
• ANA and ASMA titers not elevated
• Serum ceruloplasmin was normal
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Acute hepatitis without distinctive features
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How to sign out this case?• DX: acute hepatitis
• Comment:
– No bridging necrosis
– No underlying chronic liver disease
– No features of autoimmune hepatitis or Wilson
disease
– Drug induced hepatotoxicity is a definite diagnostic
consideration
The patient admitted to taking large doses of Ecstasy (MDMA)
• Drugs and toxins•
•
•
•
• HAV infection
• Acute HCV infection
• Acute HBV infection
• Autoimmune hepatitis
• Exotic infections
DIAGNOSIS BY
SEROLOGIC
TESTING
ACUTE HEPATITIS
Symptoms: non-specific constitutional symptoms; jaundice
Liver chemistry tests: AST & ALT >>> Alk phos and TB
Histologic pattern: lobular disarray with minimal portal changes; no fibrosis
Chronic Hepatitis• Chronic HCV hepatitis
• Chronic HBV hepatitis (+/- HDV infection)
• Chronic autoimmune hepatitis
• Drug induced chronic hepatitis
• Differential diagnosis (mimics):– Wilson disease
– Primary biliary cholangitis (PBC)
– Hepatic involvement by lymphoma
– EBV hepatitis
– Non-specific portal inflammation
– [Acute hepatitis]
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Chronic Hepatitis Generic Histologic Features
• Portal mononuclear cell infiltrates
• +/- interface activity (piecemeal necrosis)
• +/- spotty lobular inflammation
• +/- foci of individual hepatocyte dropout
• +/- scattered acidophil bodies
• +/- portal fibrosis
• Significant lobular disarray suggests a second hepatic insult
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Interface Activity
Grading and Staging Chronic Hepatitis
• Knodell histology activity index
• Scheuer system
• Ishak modified HAI
• French METAVIR system
•Batts and Ludwig system
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Grading and Staging Chronic Hepatitis
• Use for grading HBV, HCV, AIH & drug induced CH
• Grade 0 and Stage 0 are permissible
• Stage is more important than grade to clinicians
• Comparison to previous biopsy is most helpful
• In the Batts/Ludwig: grade by worst component
• In the Batts/Ludwig: portal inflammation is ignored
• HCV should very rarely be graded as 3
• HBV and AIH are often grade 3 at presentation
1 2
3 4
Grade
Grade 1
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Grade 2
0%
10%
20%
30%
40%
50%
60%
5 10 15 20 25 30
HCV
HCV + HIV
Cir
rho
sis
Years of Infection
Sem Liver Dis 2011; 31:331-9
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1 2
3 4
Stage
Very small increment in fibrosis between stages 0 and 1
Stage 4
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Stage 4
Stage 4
Stage 4
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Stage 3
Stage 2-3
Stage 2
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Stage 2
Stage 1
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Staging Errors• Small fragmented biopsy
• Overcall of subcapsular fibrosis
• Overcall of densely inflamed portal tracts
• Overcall of normal portal fibrous extensions
• Overcall of large portal tracts
• Overcall of periportal collapse as fibrosis
Always compare to previous biopsy
Stage ?
Subcapsular
Fibrosis
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Stage ?
Subcapsular
Fibrosis
Stage 0
Subcapsular
Fibrosis
Stage 0
12 of these 1 of these
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Pseudo-periportal fibrosis
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53 y.o. male with endstage renal disease
Chronic HCV Hepatitis - Grade 1, Stage 1
08-25368
Previous liver biopsy in 1997
Chronic HCV hepatitis
Grade 1, Stage 3
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Chronic HCV Hepatitis – Grade 1, Stage 1
Severe chronic autoimmune hepatitis
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Natural History of HCV Infection
100 People
Resolve (15)
15%
Chronic (85)
85%
Cirrhosis (17)Stable (68)
80%
75%
Stable (13)
Mortality (4)
25%
Time
20%
Leading Indication for Liver Transplant
Direct Acting Antivirals
• Drugs that target HCV encoded proteins that
are vital to the replication of the virus
• Oral medications well tolerated by patients
• Extremely effective
• Extremely expensive - each pill is $1,000 (12
week course $80,000)
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The new chronic HCV hepatitis drugs
• HCV protease inhibitors
– Boceprevir (already licensed)
– Telaprevir (already licensed)
– Asunaprevir (Bristol-Myers Squibb)
– Danoprevir (Roche/Genentech)
– Faldaprevir (Boehringer Ingelheim)
– Simeprevir (Janssen/Vertex)
– MK-5172 (Merck)
– ABT-450 (AbbVie, formerly Abbott)
• Nucleotide/nucleoside polymerase
inhibitors– Sofosbuvir (Gilead)
– Mericitabine (Roche)
• Non-nucleoside polymerase
inhibitors– BI 207127 (Boehringer Ingelheim)
– BMS-791325 (Bristol-Myers Squibb)
– ABT-333 (AbbVie)
• HCV NS5A inhibitors– Daclatasvir (Bristol-Myers Squibb)
– Ledipasvir (Gilead)
– ABT-267 (AbbVie)
Au J et al. Clin Pharmacol Ther 2014
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“Recurrent chronic HCV hepatitis (G1, S1)”
Actually post-SVR
“Recurrent chronic HCV hepatitis (G2, S3)”
Actually post-SVR
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HCV-type necroinflammatory activityin liver biopsies by duration post-SVR24
Months Post-SVR Number of Biopsies HCV Activity*
0 - 6 25 20 (80%)
7 - 12 17 16 (94%)
13 - 36 26 16 (62%)
37 - 60 5 3 (60%)
> 60 8 6 (75%)
* HCV activity defined as apparent recurrent chronic HCV with a grade > 0
Chronic HCV Hepatitis• Characteristic histologic features:
– Portal lymphoid aggregates
– Lymphocytic infiltration of bile ducts (~ 5%)
– Macrovesicular steatosis (40%)
– Steatohepatitis (10%)
• Important considerations:– No more than grade 2 necro-inflammatory activity
– Steatosis > 33% or steatohepatitis decreases treatment response rate
– Hemosiderosis may decrease treatment response rate
– Comparison of grade & stage to any previous biopsy most important
Chronic HCV Hepatitis & NASH
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Chronic HCV Hepatitis & NASH
Chronic HCV Hepatitis & NASH
Chronic HBV Hepatitis
• Grade 3 necroinflammatory changes common at presentation
• Ground glass hepatocytes in about 50% of biopsies:– Finely acidophilic cytoplasm with clear peripheral halo
– Proliferation of ER and virion particles
– Usually scattered individually or in small clusters
– Reactive with the HBsAg immunostain
– Simulated by oncocytic change and Cyanimide
• HDV co-infection or superinfection
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HBV Phases of Infection• HBeAg+ chronic infection (immune tolerant state):
– High levels of HBV DNA but normal AST/ALT; high HBsAg
– Occurs often with perinatal infection
– Biopsy shows no or minimal necroinflammatory activity
• HBeAg+ chronic hepatitis (immune active state):
– High levels of HBV DNA and elevated AST/ALT; moderate/high HBsAg
– Biopsy shows significant necroinflammatory active, with fibrosis development
• HBeAg- chronic infection (inactive carrier state):
– Low levels of HBV DNA and normal AST/ALT; HBsAg very low
– Biopsy shows no necroinflammatory activity
• HBeAg- chronic hepatitis:
– Moderate levels of HBV DNA and fluctuating elevated AST/ALT; moderate HBsAg
– Escape mutations resulting in HBV variants
– Biopsy shows significant necroinflammatory activity
Immune active phase
Immune active phase
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Immune active phase
Immune active phase
Immune tolerant phase
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Immune tolerant phase
Autoimmune HepatitisDiagnosis
• Serum hypergammaglobulinemia
• Serum autoantibodies:
– antinuclear antibody (ANA)
– anti-smooth muscle antibody (ASMA)
– anti-liver kidney mitochondrial (LKM) antibody
– anti-soluble liver pancreas antigen (SLA/LP)
• Biopsy evidence of chronic hepatitis with interface activity
Autoimmune HepatitisHistologic Features
• Grade 3-4 necroinflammatory changes common at presentation
• Plasma cells are prominent in most cases (85%)
• Centrilobular necrosis can occur
• Giant cell transformation of hepatocytes in rare cases (not clinically significant)
• Hepatocyte rosettes and emperipolesis (?)
• Eosinophils raise the possibility of a drug trigger
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International Autoimmune Group Revised Criteria for Diagnosis of AIH
• Gender: Score
– Male 0
– Female +2
• Serum biochemistry (AP:AST/ALT)
– > 3.0 -2
– 1.5-3.0 0
– <1.5 +2
• Total serum globulin or IgG
– >2.0 +3
– 1.5-2.0 +2
– 1.0-1.5 +1
– <1.0 0
Alverez F et al. J Hepatology 1999; 31:929-38.
• Autoantibodies Score
– ANA, SMA, or LKM-1
• >1:80 +3
• 1:80 +2
• 1:40 +1
• <1:40 0
– AMA
• Positive -4
• Negative 0
• Viral Hepatitis Markers
– Negative +3
– Positive -3
International Autoimmune Group Revised Criteria for Diagnosis of AIH
• Other etiological factors Score
– History of drug use
• Yes -4
• No +1
– ETOH
• <25 g/day +2
• >60 g/day -2
– Genetics: HLA DR3 or DR4 +1
– Other autoimmune disease +2
– Response to therapy
• Complete +2
• Relapse +3
• Liver histologyScore
– Interface hepatitis +3
– Predominant lympho-
plasmacytic infiltrate +1
– Rosetting of liver cells +1
– None of the above -5
– Biliary changes -3
– Other changes -3
• Seropositivity for other defined autoantibodies+2
Scores: Pre-tx Post-txDefinite AIH: >15 pts >17 ptsProbable AIH: 10-15 pts 12-17 pts
Simplified AIH Diagnostic CriteriaVariable Cutoff Points
ANA or ASMA ≥1:40 1
ANA or ASMA ≥1:80
2*or LKM ≥1:40
or soluble liver antigen Positive
Serum IgG level
>Upper normal limit 1
>1.10 X upper normal limit 2
Liver histology
(evidence of hepatitis is
necessary)
Non-AIH features present 0
Compatible with AIH 1
Typical of AIH 2
≥6 points: probable AIH, ≥7 points: definite AIH (specificity of 95%) *Addition of points achieved for all autoantibodies (maximum, 2 points)
Typical histology: interface hepatitis with lymphocytic/lymphoplasmacyticinfiltrate, rosettes & emperipolesis
Hennes et al, Hepatology 2008;48:169-176
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• 68 y.o. M with persistently elevated liver chemistry tests
• AST & ALT 250 – 400, Alk phos – 325, TB 3.2 – 5.0.
• Serologic tests for HAV, HBV, HCV, ANA negative.
• Atorvastatin (Lipitor) started three months previously.
C07-1718
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Chronic Hepatitis• Chronic HCV hepatitis
• Chronic HBV hepatitis (+/- HDV infection)
• Chronic autoimmune hepatitis
• Drug induced chronic hepatitis
• Differential diagnosis:
– Wilson disease
– Primary biliary cholangitis (PBC)
– Hepatic involvement by lymphoma
– EBV hepatitis
– Non-specific portal inflammation
– [Acute hepatitis]
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Wilson Disease – “Chronic Hepatitis”
Chronic Hepatitis
versus
Wilson Disease
• Clinical features:
– Hemolytic anemia
– Fulminant presentation but cirrhosis by biopsy
• Histologic features:
– Periportal Mallory-Denk bodies
– Copper deposition
– ??? Glycogenated hepatocyte nuclei
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52 year old female with PBCCholestatic pattern of LCT elevation
Patchy quality of the portal inflammation
Lymphocytic cholangitis
Poorly formed granuloma
Clinical History
• 18 year old male with a 1 day history of jaundice
• Recently returned from a ski trip and developed fevers (103°F), chills, purulent nasal discharge, sore throat, nausea.
• Approx. 4.5g acetaminophen + several doses of ibuprofen during the 3 days prior to presentation
• 2 days of RUQ abd pain and acute onset of jaundice and very dark urine
• No meds (protein supplement); no travel outside U.S.
• Physical examination - hepatosplenomegaly
09-5444
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Laboratory Evaluation
• TB = 22.4, DB = 16.5
• AST = 236, ALT = 160, Alk phos = 181
• Acetaminophen = 11.7 mcg/mL
• PT = 15.7 INR = 1.3 PTT = 44.0
• Serologic tests for HAV, HBV, HCV all negative
• ANA = 1:80; anti-SMA = 1:25
• Serum ceruloplasmin is normal
09-5444
CT
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EBER
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• 71 y.o. F presented with jaundice, weight loss and confusion
• TB = 4.2, AST = 110, ALT = 144, alk phos = 333
• HAV, HBV and HCV negative
• ANA = 1:640
• Liver biopsy performed to confirm autoimmune hepatitis
• No response to steroids
• Patient transferred to University of Chicago
Clinical HistoryC09-26718
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Additional information
• Work-up reveals disseminated B-cell lymphoma
• Patient expired 2 days later
Non-specific Portal Inflammation
• Occult intermittent biliary tract disease
• Celiac disease
• Prior (burned-out) HCV or HBV hepatitis
• Autoimmune diseases (?)
• Prior drug exposure (??)
• Unknown viruses (???)
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Extrahepatic biliary obstruction
Case 11: Clinical History
• 34 y.o. F with abdominal pain, fatigue, and nausea & vomiting
• Physical exam – mild scleral icterus
• Travel to India for four weeks (mid Jan to mid-Feb)
• No medications except herbal remedy in India
S10-6043
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Laboratory Evaluation
• Serologic tests for HAV, HBV and HCV negative
• ANA = 1:160, anti-SMA & anti-dsDNA negative
• Ceruloplasmin = 30
• Urine toxicology screen negative
• EBV, CMV, HSV, HHV-6, Leptospira all negative
• TB = 11.0, AST = 4660, ALT = 4756, Alk phos = 192
S10-6043
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Serum HEV IgM positive
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0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
20-Mar 21-Mar 22-Mar 23-Mar 24-Mar 25-Mar
0
2
4
6
8
10
12
AST
ALT
TB
• Most outbreaks associated withfecally contaminated drinking water
• Minimal person-to-person transmission
• U.S. cases (6% seroprevalence):
– History of travel to HEV endemic areas
– Occupational contact with farm animals
– Sporadic exposure
Hepatitis EEpidemiologic Features
Ditah I et al. Hepatology 2014; 60:815-22.
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Acute Hepatitis Normal Liver Chronic Hepatitis
Summary
Chronic hepatitis:
- Diagnosis used for chronic HBV, HCV, AIH (& drug)
- Use a grading/staging scheme (Batts/Ludwig)
- Don’t forget grade 0 and stage 0
- Compare to previous biopsy if available
- Mention steatohepatitis if present
Mimics:
- Primary biliary cholangitis – cholestatic pattern of LCTs
Biopsy Adequacy in Chronic Hepatitis
How big does the biopsy have to be
for accurate grading and staging?
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Crawford AR et al. Hepatology 1998.
14 gauge needle
Conclusion: Biopsies for HCV must be -2.0 cm long and 1.4 mm wide
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1.4 mm Diameter Bx > 3 cm long 1.5 cm long 1.0 cm long
# of Portal Tracts
Complete 22.4 +/- 4.9 10.3 +/- 2.2 6.4 +/- 1.2
Incomplete 0.8 +/- 1.1 0.4 +/- 0.8 0.3 +/- 0.6
Grade
Mild 49.7 % 60.2 % 86.6 %
Moderate 38.5 % 39.1 % 17.4 %
Severe 11.8 % 0.60 % 0.00 %
Stage
One 59.0 % 68.3 % 80.1 %
Two 29.8 % 24.2 % 14.9 %
Three 11.2 % 7.4 % 4.9 %
Colloredo G et al. J Hepatol 2003; 39:239-44.
Klatskin 16 gauge needle
Menghini 20 gauge needle
Transjugular 20 gauge needle
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0.4 mm 0.5 mm 1.3 mm