Hcc Flashcards
Most frequent amplification hcc
1q- 57%
8q 46
6p 22
17q 22
Mc oncogene hcc
P53 (tsg)- 18 &35%
& wnt b catenin (pog)- 15.9 %
Ctnnb1 mutation liver
Larger in size
Wd
Without inflam features
Tp53 hcc
PD
Pleomorphic
Vascular invasion
Schrrhous hcc
TSC1/2
Steatotic hcc
IL 6/ JAK/stat
Macrotrabecular massive subtype
Poor outcome
High AFP
FGF19 amplifications
Molecular hcc subtypes
Stromal s1
Stemness angiogenic-s2
Diff ctnnb1
Diff non ctnnb1
Stemness marker
EPCAM
Hbv-hcc
Hcv- hcc
Cirrhosis- hcc
54%
31%
1-8% yrly
Hereditary conditions causing hcc
High Hemochromatosis- 3-4% annual risk, 23 times Antitrypsin Hereditary tyrosinemia Low- wilson, pbc
Screening- 6 month usg >1 cm
Afp>20 ng
Hep b and c Alcoholic, nafld nash Antitrypsin def Cirrhosis Pbcholangitis stage 4
LIRADS
1- def benign 0 2- probably 11% 3- intermediate prob of hcc 33 4- high prob hcc not 100% 80 - bx 5- def hcc 96% 5v- venous inv Lrm- non hcc ca 42% hcc, rest another tr
Components of LIRADS
- Arterial phase hyperenhancement
- Size
- Washout and enhancing capsule
Hcc growth pattern most common- nodular expanding pattern
Eggel's classification (1901): Nodular HCC Massive HCC Diffuse HCC Kaufmann's classification (1958) Large massive node HCC in cirrhotic liver (a) Multiple nodules (b) Diffuse growth (c) Combination of nodules and growth Okuda classification (1984) Expanding Spreading Multifocal
Classf of hcc
Surgical classification: Invading lesions ("invaders") Expanding lesions (**pushers") Pedunculated lesions ("hangers") Classification of the Liver Cancer Study Group of Japan (LCSGJ: Nodular HCC (distinctly nodular type) Simple nodular (SN) type Simple nodular type with extranodular growth (SNEG) Confluent multinodular type (CMN) Nodular HCC Small nodular type with indistinct margins (vaguely nodular type) Classification according to size: Small HCC Solitary large HCC
Architectural patterns liver
Schirrous
Acinar or pseudoglandular
Trabecular
Fibrolamellar hcc
0.85% of primary liver cancer
13.4% of all cases in patients younger than 40
• Overexpression of neuroendocrine genes- prohormone convertase 1, neurotensin, delta/notch-like
epidermal growth factor- related receptor, and calcitonin.
histologic features are fibrous
stroma and large eosinophilic tumor cells
More LN inv
Cytokeratin 7 and 19
DNAJB1PRKACA Chimera
Hcc with hypercalcemia
Sclerosing variant
Hcc with hypoglycemia and hypercholesterolemia
Clear cell variant
Grading of hcc
Edmondson and
Steiner system, which subdivides HCC into
four grades, from I to IV
Marker distinguishing benign and malig hep lesions
Glypican-3
Hepaticellular differentiation markers
HepPar1 and arginase
Criteria for Non Invasive Diagnosis in HCC
Lesions > 2 cm
Arterial enhancement and venous washout on 1
imaging modality either on CT/MRI/USG or
angiogram
Only arterial enhancement on 2 contrast studies
Lesions 1 - 2 cm
- Arterial enhancement and venous washout on 2
imaging modalities
Arterial enhancement alone and &FP > 200 ng/ml
Child pugh
Class A = 5 to 6 points (least severe liver disease)
Class B = 7 to 9 points (moderately severe liver disease)
Class C = 10 to 15 points (most severe liver disease)