Management of hepatoblastoma - SUNY Downstate …€¦ · MANAGEMENT OF HEPATOBLASTOMA. ......
Transcript of Management of hepatoblastoma - SUNY Downstate …€¦ · MANAGEMENT OF HEPATOBLASTOMA. ......
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Christopher LauSUNY Downstate Medical Center
MANAGEMENT OF HEPATOBLASTOMA
www.downstatesurgery.org
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CASE HISTORY
22 month old BB presented to KCHC in June 2010 when his mother felt a hard mass in his abdomen
Mother denied any other problems Baby had normal eating and drinking,
normal stool, normal activity No other complaints
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PAST MEDICAL HISTORY
Negative Birth/Developmental History:
Uncomplicated NSVD Mother unaware of pregnancy until she was in
labor First words 8 months Walked 16 months Drinks 8oz. Milk 3-4 times a day with occasional
meat, fruits and vegetables Immunizations up to date
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PHYSICAL EXAM
Well developing, well nourished, active Weight 12.8kg (84th percentile)
Was 13.5kg in April 2010 Length 84cm (80th percentile) Chest: clear CVS: regular rate, no murmur Abdomen: large, hard mass occupying right
side of abdomen and extending into LUQ
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INITIAL IMAGINGwww.downstatesurgery.org
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INITIAL IMAGINGwww.downstatesurgery.org
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INITIAL IMAGINGwww.downstatesurgery.org
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INITIAL IMAGINGwww.downstatesurgery.org
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INITIAL IMAGINGwww.downstatesurgery.org
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INITIAL IMAGINGwww.downstatesurgery.org
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INITIAL IMAGINGwww.downstatesurgery.org
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TREATMENT COURSE
Clinical Impression: Hepatoblastoma metastatic to lungs
7/7: Open liver biopsyPathology: undifferentiated hepatoblastoma
7/9: Chemoport placed 7/14: SIOPEL-3HR protocol initiated
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CHEMOTHERAPY
Chemotherapy7/14/2010 Cisplatin
7/22/2010 Carboplatin/Doxorubicin
8/12/2010 Cisplatin
8/27/2010 Carboplatin/Doxorubicin
9/14/2010 Cisplatin
10/3/2010 Carboplatin/Doxorubicin
10/19/2010 Cisplatin
AFP7/6/2010 60500
8/4/2010 72981
9/8/2010 10310
10/10/2010 3491
10/19/2010 2033
12/2/2010 4601
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POST CHEMO IMAGINGwww.downstatesurgery.org
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POST CHEMO IMAGINGwww.downstatesurgery.org
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POST CHEMO IMAGINGwww.downstatesurgery.org
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CURRENT PHYSICAL EXAM
Presented to Downstate for hepatic resection on 12/3/2010
Weight 13.5kg (50-75th percentile) Height 87cm (75th percentile) Abdomen: hard mass in RUQ extending
3cm below the costal margin and into the LUQ
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LABS
CBC: 3.6>9.5/30.1<304 BMP: 137/4.3/107/19/19/0.38/90/9.5 LFT: 7/4.4/26/16/271/0.1 Coag: 15.7/36.6/1.3
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OPERATION
Bilateral subcostal incision with vertical extension Adhesions and falciform were taken down Divided right triangular ligament Ligated short hepatic veins, right and middle hepatic
vein Cholecystectomy performed Isolated and ligated right hepatic artery, portal vein,
and hepatic duct Liver parenchyma divided with electrocautery, blunt
dissection and ligation of larger vessels and ducts
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PATHOLOGY
Right hepatic lobeHepatoblastomaMixed mesenchymal and epithelial cells 12cmResection margins negative for tumorPathologic Stage I (pT1NxMx)
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POST-OP COURSE
Returned to PICU intubated POD#3 extubated POD#4 tolerating diet Drain output serosanguinous
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MANAGEMENT OF HEPATOBLASTOMA
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HEPATOBLASTOMA
Malignant liver tumors account for 1% of all pediatric malignanciesHepatoblastomaHepatocellular carcinoma
Liver tumors are the third most common intra-abdominal neoplasm after neuroblastoma and nephroblastoma
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EPIDEMIOLOGY
HepatoblastomaIncidence 1.2 cases per millionAge distribution 6 mo to 3 yrRisk factors Beckwith-Weidemann
syndromeFamilial adenomatous polyposisHemihypertrophyLow birth weight
5-yr survival 52% to 75%
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CLINICAL FEATURES
Most present with an abdominal mass Most are asymptomatic Thrombocytosis is present in 60% Most sensitive lab test is serum AFP
Elevated in over 90% of hepatoblastomasA nonspecific tumor markerCan be used to monitor chemotherapeutic
efficacy and tumor recurrence
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DIAGNOSTIC AND TREATMENT ALGORITHMwww.downstatesurgery.org
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IMAGING
Ultrasound Well-defined hyperechoic solid lesion Color doppler can be used to assess vascular
involvement CT
Usually reveals a low attenuation mass Can delineate tumor size, location, and regional
adenopathy MRI
Useful for determining relationship to hepatic vasculature and biliary anatomy
Homogenous hypointensity on T1-weighted and hyperintensity on T2-weighted images
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STAGING
Multiple staging systems Current system used by Pediatric Oncology
Group
PRETEXT staging system for neoadjuvanttreatment Describes liver segments involved, metastases,
ingrowth of vena cava, ingrowth of portal vein, and extrahepatic extension
Stage DescriptionI Complete resectionII Microscopic residual tumorIII Macroscopic residual tumorIV Distant metastasis
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PRETEXT STAGING SYSTEMwww.downstatesurgery.org
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CHEMOTHERAPY
Neoadjuvant therapyDownstaging disease Improves resectability Improves long term survivalNon-responders can experience disease
progressionAFP and imaging must be monitored for response
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CHEMOTHERAPY
Several regimens are available SIOP (Société Internationale d'Oncologie
Pédiatrique) advocates use of cisplatin/doxorubicin regimen
Other regimens include:Cisplatin, vincristine, 5-fluorouracilCisplatin, ifosfamide, doxorubicin
Irinotecan may be considered for refractory or recurrent hepatoblastoma
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Randomized prospective trial 182 patients with Stage I-unfavorable to Stage IV disease Randomized to receive (A)cisplatin/vincristine/fluorouracil
or (B)cisplatin/doxorubicin after surgery 5 year event free survival was 57% and 69% (P=0.09) Overall toxicities, were significantly more frequent in
patients who received regimen B
However, there were no cures in Stage IV patients
neutropenia (P <.001),
thrombocytopenia (P <.0001)
anemia (P <.001)
stomatitis (P <.0001)
adverse cardiac effects
(P <.01)
renal dysfunction (P =.02)
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Prospective clinical trial Evaluates intensified regimen adding
carboplatin to the cisplatin/doxorubicin regimen for high risk hepatoblastoma Tumor in all liver sectors (PRETEXT IV) Vascular invasion [+P] or 3 hepatic veins [+V] Intra-abdominal extrahepatic extension Metastatic disease [+M] AFP< 100ng/ml at diagnosis
151 enrolled, 118 achieved partial response to chemo, 115 had complete resection of tumor
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3 year event free survival 65% (95% CI, 57% to 73%)
3 year overall survival 69% (95% CI, 62% to 77%)
EFS and OS for group with PRETEXT IV tumor as only high risk feature was 68% and 69%
Original SIOPEL study – 5 year EFS for PRETEXT IV tumor was 46% and metastases was 28%
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SURGERY
Goal is complete anatomic resectionNon-anatomic resections associated with
higher rate of incomplete resectionType of Resection Liver SegmentsLeft lobectomy II and IIILeft hepatectomy II, III, and IVExtended left hepatectomy II, III, IV, V, and VIIIRight hepatectomy V, VI, VII, and VIIIExtended right hepatectomy IV, V, VI, VII, and VIIICentral hepatectomy IV, V, and VIIISegmentectomy
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LIVER ANATOMYwww.downstatesurgery.org
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RIGHT HEPATECTOMY
Cantlie’s line
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RIGHT HEPATECTOMYwww.downstatesurgery.org
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RIGHT HEPATECTOMYwww.downstatesurgery.org
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RIGHT HEPATECTOMYwww.downstatesurgery.org
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RIGHT HEPATECTOMYwww.downstatesurgery.org
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RIGHT HEPATECTOMYwww.downstatesurgery.org
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LIVER TRANSPLANTATION
6% with hepatoblastoma will require liver transplantation
Should be considered when: All four sectors are involved Complete tumor excision by partial hepatectomy
is unlikely due to proximity to vessels Contraindication is presence of extrahepatic
disease after chemotherapy Primary liver transplantation 10 year survival
85% Rescue liver transplantation after primary
partial hepatectomy 5 year survival 30-50%
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SIOPEL-1 study evaluated use of preoperative chemotherapy for HB
138 received chemo, 115 underwent surgery 12 patients received liver transplants
7 primary liver transplants 5 rescue transplants
Overall survival 75% at 5 years, 66% at 10 years For primary transplant 85% For rescue transplant 40%
Meta-analysis of World data and later papers confirmed these findings
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ABLATIVE THERAPIES
For patient who cannot have anatomical resections and are not candidates for transplantation
Types include: Chemoembolization Radiofrequency ablation Percutaneous injection of ethanol Cryoablation
May offer palliation and improve survival but rarely leads to cure
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PROGNOSIS
5 year event free survival
Patients should be followed with AFP levels
Those who had normal AFP levels should be followed with serial imaging
Stage HepatoblastomaI (pure fetal histology) 100% (n = 9)I (other histologic types)
91% (n = 43)
II 100% (n = 7)III 64% (n = 83)IV 25% (n = 40)
Ortega JA, Dougless EC, Feusner JH, et al: Randomized comparison of cisplatin/vincristine/Auorouracil and cisplatin/continuous infusion doxorubicin for treatment of pediatric hepatoblastoma: A report from the Children's Cancer
Group and the Pediatric Oncology Group. J Clin Oncol 2000;18:2665–2675
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SUMMARY
The goal is complete anatomic resection Neoadjuvant chemotherapy for high risk
tumors and unresectable tumors Liver transplant is an option for tumor not
amenable to partial hepatectomy Intensified chemo regimen improves survival
in high risk tumors
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REFERENCES Grossman EJ, Millis JM. Liver transplantation for non-hepatocellular carcinoma malignancy: Indications,
limitations, and analysis of the current literature. Liver Transpl. 2010 Aug;16(8):930-42. Herzog CE, Andrassy RJ, Eftekhari F. Childhood cancers: hepatoblastoma. Oncologist. 2000;5(6):445-53. Ortega JA, Douglass EC, Feusner JH, Reynolds M, Quinn JJ, Finegold MJ, Haas JE, King DR, Liu-Mares W,
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