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Management of Hepatocellular Carcinoma (HCC)
  • Nisha Chand, MD
  • Todd Stravitz, MD
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"64 y/o WM with Dx..."
  • 64 y/o WM with Dx of Cryptogenic Cx ’02


  • Cx complicated by ascites, encephalopathy, jaundice.
  • Labs: Plts -84, AST/ALT - 118/121, TB - 3.6, Alb - 2.7, PT - 15.2, AFP 9.1
  • U/S 2/02: Negative, CT 2/02: Negative
  • Pt was lost to follow up for 1 year
  • Represents with ascites and encephalopathy
  • AFP: 762
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HCC
  • Most Common Primary Cancer of Liver
  • Incidence: Geographic Region
  • Commonly occurs in patients with cirrhosis
  • Potentially Curable


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Objectives
  • Incidence and Risk Factors
  • Surveillance
  • Diagnostic Confirmation / Assessment of Disease Extention
  • Prognosis
  • Treatment
    • Curative Treatments
    • Adjuvant / Palliative Therapy
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Incidence and Risk Factors
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Incidence
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Incidence
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Temporal Trends in Age-Specific Incidence Rates
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Role of Cirrhosis in Development of HCC
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Risk Factors
  • Proportion of patients with HCC in the US who have Serologic Evidence of Chronic Viral Hepatitis
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Risk Factors
  • Cirrhosis : Irrespective of Etiology
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HCV and HCC
  • Summary of several studies that reported the annual incidence rates of HCC among patients with HCV-related cirrhosis
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HCV and HCC
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Screening
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Surveillance
  • Repeated application of screening tests over time in order to reduce disease-specific mortality


  • Pts at risk / Eligible for treatment


  • Final Result: Increased successful treatment and decreased disease specific mortality
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Criteria for Cost Effective Screening (WHO)
  • Important health problem
  • Accepted treatments are available
  • Facilities for diagnosis and treatment are available
  • Recognizable in latent/early stage
  • Suitable Tests for screening are available
  • The screening tests are acceptable to the population
  • The natural history of the condition is understood
  • Agreed policy on whom to treat is available
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Screening Tools
  • AFP
  • US
  • CT
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AFP
  • Common / Easily Used
  • Cut-off level of 20 ng/ml:  SE 60%     SP 90.6%


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AFP in Pts with Viral Hepatitis
  • >500 ng/ml : Hep B or C reactivation
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AFP
  • The PPV and NPV : 25% and 97.7%
  • For Pts without hepatitis B or C, PPV = 100%
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AFP - The Grey Area
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Other potentially useful tumor markers
  • AFP L 3
  • Des-gamma-carboxy prothrombin
  • PIVKAA II
  • GGTII
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US

  • Superior to AFP for detection of HCC
  • Good availability
  • Low cost
  •  No radiation
  • Good patient acceptance
  • Can assess patency of portal vein.
  • BUT: User dependent
  • Diagnostic efficiency continues to improve (Contrast enhanced / Echo enhanced)
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US Sensitivity and Specificity
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U/S
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AFP + US
  • AFP - no use for screening and only useful for confirmation of diagnosis?
  • Bolondi et al: AFP even >200 ng/ml : does not increase detection rate of HCC in absence of nodules visible w/ US
  • Combining US and AFP: Sensitivity 100%???
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Optimal Interval of Surveillance
  • Related to tumor growth rate
  • Sheu et al, Gastro 1985: Most rapidly growing HCC take ~4-6 mo to grow to 3 cm
  • Trevisani et al, Am J Gastro ‘02:
  •      Prevalence Pts fullfilling Milano Criteria
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Cost Effectiveness
Charges and cost effectiveness analysis of the surveillance program (US$)
  •              Baseline      Costs in         Costs in
  •               costs*      screened pts*     unscreened pts*
  • Surveillance program
  •   AFP        14       40  236   1 456
  •   Ultrasonography       47              135 078   4 888
  •       Resulting cost               175 314                 6 344
  • Diagnostic tests
  •   Computed tomography   1 530                11 322              15 912
  •   Echo guided biopsy        95            5 700          9 025
  • Treatments
  •     PEI    1 610         22 540               32 200
  •     TACE    3 250              165 750              292 500
  •     Hepatic resection   11 970         47 880                99 850
  •     OLT                  54 120              324 720                432 960
  •         Resulting cost                753 226               858 791
  • Cost for treatable hepatocellular carcinoma     17 934 14 555
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Diagnostic Confirmation
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Diagnostic Confirmation / Staging
  • Crucial to indicate treatment and achieve optimal outcomes.
  • CT and MRI
  • Indications for CT / MRI:
          • Absolute AFP > 20 ng/ml
          • Trend of Increasing AFP
          • Lesion seen on US
          • Inadequate US
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CT
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CT/ MRI: Small Lesions
  • Sensitivities < 50% for detection of lesions smaller than 2 cm.
  • Recently, the sensitivities and accuracy of MRI have shown improvement for 1 cm to 2 cm sized nodules.
  • Comparison of MRA with Helical CT showed better detection of all nodules, esp. 1 – 2 cm nodules with MRI
  •  ( All:  76% vs 61%           1-2 cm: 84% vs 47%)


  • Best MRI technology: Contrast-enhanced 3-D MRI with angiographic sequences


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Recall / Diagnostic Criteria
  • No studies yet have defined the best recall policy.
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Diagnostic Criteria
  • Cyto-histological criteria


  • Non-invasive criteria (restricted to cirrhotic pts)


      • Radiological criteria: two coincident imaging techniques (US, CT, MRI + Angio)
  •        Focal lesion >2 cm with arterial hypervascularization
      • Combined criteria: one imaging technique associated with AFP
  •        Focal lesion >2 cm with arterial hypervascularization
  •        AFP >400 ng/ml
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Work-up of Pt with HCC
  • Is there evidence of portal venous extension?
    • MRA
    • Duplex US
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Assessing Prognosis
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"Child-Pugh"
  • Child-Pugh
  • TNM
  • Okuda Staging System
  • Cancer of the Liver Italian Program Score (CLIP)
  • Barcelona Clinic Liver Cancer Staging
  • American Joint Committee on Cancer(AJCC)
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Treatment
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Treatment
  • Liver Transplantation
  • Surgical Resection
  • Chemoablative Therapy (TACE/TAE)
  • Locoregional Ablative Therapy  (Radiofrequency, Microwave, Laser)
  • Cryotherapy
  • Percutaneous Ethanol Injection
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OLT
Milan Criteria
  • 1. Single Tumor < 5 cm
  • OR
  • Less than 3 tumors, largest being < 3 cm
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OLT: Milan Criteria
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OLT
Milan Criteria
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Resection
  • Option for few pts with HCC arising in a normal liver / well preserved hepatic function.
  • Proper selection, 5 year survival can be better than for OLT (70%)
  • Segmentectomy / Subsegmentectomy
    • Single, small tumor (<5cm)
    • Bili <1
    • Absence of Severe Portal HTN (<10mmHg)
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Resection
  • Cha et al. J of the Amer College of Surgeons, Nov 2003:
  • Predictors of Recurrence
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Adjuvant / Palliative Treatments
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TACE/TAE
  • Ischemic necrosis
  • Allows hepatic arterial injection of chemotherapeutic agents
  • Reduce Systemic Toxicity and Increase Local Effects
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"97.5"
  • 97.5% Ethanol – induce coagulative necrosis
  • Amount of ethanol correlates with cubic volume of tumor, with 1 cm rim of normal tissue.
  • Small encapsulated tumors with <3 in #
  • No damage to remaining parenchyma
  • Low Cost, Easy Operation
  • Multiple treatment sessions and needle passes
  • Painful
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MCVH HCC Protocol
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Conclusion
  • Rising incidence in the US
  • Surveillance: Q 6 mo to 1 year with at least one modality of imaging
  • Only good prognostic factor is finding tumor early with small HCC and no vascular invasion or portal vein thrombosis.
  • Great survival benefit in Pts who get transplanted or resection in early stage
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