Liver Flashcards

1
Q

epidemiology

A

18th most common in UK, 6th most common in the world
38% increase by 2035
8th most common death
1/58 males diagnosed
1/122 females diagnosed

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2
Q

aetiology

A

liver cirrhosis
obesity
smoking
long term infections: Hep B/C
liver flukes: parasites in contaminated food/water

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3
Q

what is the most common pathology

A

hepatic cell carcinoma (85%)

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4
Q

what are the other pathology types

A

cholangiosarcoma of bile duct
angiosarcoma - vascular cancer
hepatoblastoma
liver mets from other primary sites

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5
Q

diagnosis

A

active surveillance: high risk patients with hep B/C
CT/MRI
US
blood tests: raised LFT may indicate something other than liver cancer
biopsy

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6
Q

what are the spread types

A

local/primary and lymphatics

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7
Q

what is the primary spread

A

mets in other lobes
multiple in the liver
lung/live from blood
gall bladder

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8
Q

what is the ;lymphatic spread

A

hepatic
coeliac
para-aortic

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9
Q

what staging is used

A

BCLC = Barcelona Clinic Liver Cancer

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10
Q

what does the BCLC look at

A

performance status: fitness level, child Pugh score (liver function), and number and size of the tumours

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11
Q

what does the staging system determine

A

the treatment most suitable/ advised treatment route

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12
Q

RFA

A

Radio-frequency ablation, high RF waves are used

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13
Q

PEI

A

Percutaneous Ethanol Injection

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14
Q

when is surgery the treatment

A

early stages

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15
Q

are high doses required

A

yes, they are necessary for killing the tumour

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16
Q

presentation

A

jaundice: yellow pigmented skin, white spots in the eyes due to excess bilirubicin in the blood
abdominal pain
vomiting
weight-loss is RARE
physical lump
uncontrolled fever (jaundice or functional issue)
ascites: build up of fluid in the peritoneum, could be confused with bloating
shoulder pain, due to the nerves being trapped

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17
Q

what is the dose for RT for single centres

A

66Gy in 33

18
Q

what is SIRT

A

selective internal radiotherapy
injects radioactive beads into the tumour

19
Q

what types of RT can be given

A

TACE + RT
SABR/SBRT [most common, takes 45 minutes], VMAT is RARE

20
Q

what is the predominant dose for RT

A

54Gy in 30

21
Q

what is the survival rate

22
Q

what does TACE stand for

A

Trans Arterial Chemo Emobilisation

23
Q

what is TACE

A

high dose of chemo (doxorubicin/cisplatin) are injected into the tumour injected, the contrast which is used to highlight the vessels is injected into the femoral artery, making it less systemic. This reduces the blood supply to the tumour, causing it to be starved of O2 and nutrients required for growth.

24
Q

why is TACE normally before RT

A

RT can shrink the vessels making it more difficult for TACE to work

25
Inclusion criteria for TACE
1-3 mets unsuitable for surgery curative intent (LE>6months) max size of met is <6cm class A CPS
26
exclusion criteria for TACE
hepatitis or liver failure previous RT to liver
27
what is SABR
Stereo Ablative RT short dose regimes with high doses in less fractions, for patients unsuitable for treatment via surgery, early stages with no distant mets
28
types of doses for SABR
40-60Gy in 3 (alternate days) 50-60Gy in 5 fractions (alternate or daily) 30-60Gy in 10 fractions (TV doesn't meet SABR eligibility)
29
what is the palliative RT
20Gy in 5 or 30Gy in 10 ant and post field
30
where are mets found
colorectal lung stomach breast prostate pancreas skin oesophagus
31
breathing immobilisation techniques
SGRT Exhale hold Metronome - control breathing in and out Compression belt, abdominal bridge, thermoplastic
32
what is the issue with irradiating the liver
you might irradiate the skin or duodenum
33
what happens during tumour lysis
the body goes into overdrive, risk of sepsis uncontrolled fever and immune response
34
what does bigger mets lead to
bigger cell death and bigger issues
35
what does velindre do
wing board free breathing full inhale and exhale = ITV CBCT- 10 min later, CBCT again to check no inter fraction motion of day 0 0 tol
36
what do other centres do
breath-hold/ exhale Vacfix on wing board 4DCT on CBCT software FFF for high dose rate
37
what are the RT side effects and complications
skin nausea diarrhoea loss of appetite fatigue radiation induced liver damage: low Childs Pugh score SABR daily toxicity scoring
38
what's the survival if mets are treated with SABR
70-100%
39
what happens with late presentation
poor prognosis
40
what does active surveillance allow for?
early detection of liver mets