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Ph RadOnc Residency PBRROE2-3 Review 2021 > Cancer of the Liver and Hepatobiliary Tract > Flashcards

Cancer of the Liver and Hepatobiliary Tract Flashcards

1
Q

Liver

What structure divides the liver into left and right lobes?

A

falciform ligament

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2
Q

Liver

What segments are in the left lobe of the liver?

A 
the lateral segments (II and III)
the medial segment  (IV)
caudate lobe (segment I)
***
I - medial superior area
II - lateral segment/lateral superior area
III - lateral inferior area/left anterior lateral segment
IV - medial segment/medial inferior area
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3
Q

Liver

What segments are in the right lobe of the liver?

A

the posterior segments (VI and VII)
the anterior segments (V and VIII)
***
V - anterior medial segment/anterior inferior area
VI - right anterior lateral segment/Posterior inferior area
VII - posterior lateral segment/posterior superior area
VIII - posterior medial segment/anterior superior area

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4
Q

Liver

What anatomic landmark separates the medial and lateral segments of the liver?

A

falciform ligament (drawn between gallbladder and IVC)

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5
Q

Liver

What anatomic landmark separates the anterior from the posterior segments of the liver?

A

right hepatic vein

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6
Q

Liver

What anatomic landmark separates the left medial segment from the anterior segment of the liver?

A

middle hepatic vein

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7
Q

Liver Cancer

The recent rise of HCC in the developed regions is attributed to the higher prevalence of what related infection?

A

HCV infection

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8
Q

Liver Cancer

Antiviral therapy has also been shown to reduce recurrence and improve survival for HBV-related HCC.

TRUE or FALSE?

A

True

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9
Q

Liver Cancer

There is a reduction in mortality for hepatitis B patients who had undergone surveillance.

TRUE or FALSE?

A

True.
***
A randomized study demonstrated a 37% reduction in mortality for hepatitis B patients who had undergone surveillance.

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10
Q

Liver Cancer

Fungi associated with aflatoxins that are considered risk factors for developing HCC.

A

Aspergilus (flavus and parasiticus)

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11
Q

Liver Cancer

The risk of HCC is even higher in patients who are HBcAg positive compared
with those who are HBcAg negative.

TRUE or FALSE?

A

False.

It’s “e” envelope, not “c” core

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12
Q

Liver Cancer

Chronic alcohol use of >__ g/day for more than 10
years increases the risk for HCC by approximately fivefold.

A

80

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13
Q

Liver Cancer

Hereditary liver diseases associated with a higher risk of developing HCC.

A

hemochromatosis
Wilson disease
hereditary tyrosinemia
type I glycogen storage disease

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14
Q

Liver Cancer

NCCN recommends screening for which group of patients?

A

HBsAg carriers without cirrhosis

and

cirrhosis from all causes

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15
Q

Liver Cancer

NCCN recommends screening procedure for high-risk patients?

A

serum AFP

ultrasound

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16
Q

Liver Cancer

Fifteenminute
retention rate of _______ before treatment is very useful
for determining resectability and/or the feasibility of radiation

A

indocyanine green (ICG)

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17
Q

Liver Cancer

What are the noninvasive criteria for diagnosing HCC in a cirrhotic liver as suggested by the AASLD in 2005?

A

AFP > 200 ng/mL
or
typical enhancement pattern (arterial enhancement and delayed portal vein washout) on dynamic imaging of hepatic mass >2 cm in a cirrhotic liver.

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18
Q

Liver Cancer

Ultrasound examination of the liver is commonly used as a screening tool.

Which of the following is/are TRUE?

I. Small tumors are often hyperechoic.

II. As the tumor grows, the echo pattern tends to become isoechoic or hypoechoic, and HCC can be difficult to distinguish from the surrounding liver.

III. Nodules <2 cm should be followed with ultrasonography again at intervals of 3 months.

IV. Nodules over 2 cm in a cirrhotic liver should be investigated further with four-phase dynamic CT scan.

A

None.

I. hypo
II. to hyper
III. <1
IV. >1

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19
Q

Liver Cancer

Identify the BCLC stage:

Child-Pugh C
ECOG 3-4

A

D

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20
Q

Liver Cancer

Identify the BCLC stage:

Portal Invasion
N1
M1
Child-Pugh A–B
ECOG 1–2
A

C

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21
Q

Liver Cancer

Identify the BCLC stage:

Multinodular
Child-Pugh A–B
ECOG 0

A

B

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22
Q

Liver Cancer

Identify the BCLC stage:

Single nodule <2 cm
Child-Pugh A
ECOG 0

A

0

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23
Q

Liver Cancer

Identify the BCLC stage:

Single nodule or 3 nodules <3 cm
Child-Pugh A–B
ECOG 0

A

A

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24
Q

Liver Cancer

The fibrolamellar variant of HCC has a relatively better prognosis.

It occurs more frequently in the elderly and has a more indolent clinical course than conventional HCC.

TRUE or FALSE?

A

False.
***
adolescents/young adults

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25
Q

Liver Cancer

Hepatoblastoma occurs most commonly in young children (median age,
13 to 16 months) and usually presents as an incidental finding with an early-stage and favorable course.

TRUE or FALSE?

A

False.
***
advanced stage

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26
Q

Liver Cancer

Child Pugh score 1

A

bil <2 (low)
albumin >3.5 (high)
protime <4 (short)
no hepatic enceph and ascites

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27
Q

Liver Cancer

Child Pugh score 2

A 
bil 2–3
albumin 3.5 to 2.8
4–6
grade 1–2 enceph
mild detectable ascites
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28
Q

Liver Cancer

Child Pugh score 3

A 
bil >3 (high)
albumin <2.8 (low)
protime >6 (prolonged)
grade 3–4 enceph
severe tense ascites
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29
Q

Liver Cancer

Child Pugh Class A

A

score 5 to 6

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30
Q

Liver Cancer

Child Pugh Class B

A

7-9

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31
Q

Liver Cancer

Child Pugh Class C

A

> 9

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32
Q

Liver Cancer

What is Milan’s size and number criteria for eligibility for liver transplantation?

A

solitary tumor 5 cm

up to 3 tumors (smaller than 3 cm)

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33
Q

Liver Cancer

Which is/are true regarding liver transplantation?

I. Many patients are not candidates for definitive surgery because of underlying
liver dysfunction. The increasing availability of liver transplantation has made
this procedure a viable alternative to tumor resection for selected patients

II. excellent overall 3- to 4-year actuarial
(75% to 85%) and recurrence-free survival rates (83% to 92%) can be
achieved

III. Risk factors of recurrence after transplantation include tumor
size, number of tumors, vascular invasion, and persistence of HBV
infection

IV. Local treatment such as TACE or RFA could downstage HCC for
transplantation purposes.
Downstaging could increase the opportunity for
transplantation and improve survival. Besides, local treatment could also be a
bridging therapy for patients on the waiting list to keep them away from
progression of disease diminishing the chance of transplantation

A

All are true

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34
Q

Liver Cancer

For patients with early-stage HCC who are not suitable for resection or
transplantation, percutaneous ablation could be a treatment option.

Percutaneous ________ is highly effective for small HCC. It achieves
necrosis rate of 90% to 100% of the HCC <2 cm in size, but the necrosis rate is
reduced to 50% if HCC is >3 cm

A

ethanol injection

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35
Q

Liver Cancer

RFA involves the local application of radiofrequency thermal energy to the
lesion. RFA is a reasonable option for patients who do not meet resectability
criteria for HCC and yet are candidates for a liver-directed procedure based on
the presence of liver-only disease. The best outcomes are in patients with a
single tumor _______(range) cm in diameter. Randomized control trials comparing
RFA and ethanol injection have shown that RFA provides superior local disease
control that could result in an improved survival.

A

> 2 and <4

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36
Q

Liver Cancer

HCC is a radiosensitive tumor.
TRUE or FALSE?

A

True

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37
Q

Liver Cancer

Indications for RT

A

larger unresectable HCC

relieving portal vein tumor–induced thrombosis

obstructive jaundice

failure of prior TACE

and as component of combined modality with TACE and percutaneous ablation.

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38
Q

Liver Cancer

A patient with Child-Pugh Class ≥B or score ≥8 is usually not treated with SBRT due to the risk of RILD, unless…

A

the patient is already on the list for liver transplantation soon enough.

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39
Q

Liver Cancer

Treatment for large unresectable tumors?

A

TACE + RT

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40
Q

Liver
(from in-service bank)

18. Hepatocellular carcinoma is quite unique in that it gets it arterial blood supply differently from the blood supply of the rest of the liver. The tumor is supplied by the \_\_\_\_\_\_\_\_.
	A. Portal vein
	B. Hepatic artery
	C. Portal vein and hepatic artery
	D. Superior mesenteric artery
A

B

41
Q

Liver
(from in-service bank)

  1. Malignant tumors of the liver are uniformly characterized by the following images on triphasic CT scan.
    A. early enhancement in the arterial phase compared to the rest of the surrounding liver tissue and washout or hypodense image in the porto-venous phase
    B. hypodense image in the arterial phase compared to the rest of the surrounding liver tissue and enhancement in the porto-venous phase
    C. no difference in contrast enhancement between tumor and surrounding liver tissue in arterial phase
    D. no difference in contrast enhancement between tumor and surrounding liver tissue in the porto-venous phase
A

A

42
Q

Liver
(from in-service bank)

  1. To rule out other conditions, a tissue biopsy must always be performed to make a diagnosis of hepatocellular carcinoma.
    A. True
    B. False
A

B

43
Q

Liver
(from in-service bank)

  1. The Barcelona Clinic Liver Cancer (BCLC) Staging System is widely used as guide in the treatment decision for Hepatocellular Carcinoma. What is/are the first line of treatment recommendation for stage 0 (Very Early) and Stage A (Early)?
    A. Resection
    B. Liver transplantation
    C. Percutaneous Ethanol Injection (PEI)/Radiofrequency ablation (RF)
    D. All of the above
A

D

44
Q

Liver
(from in-service bank)

  1. For stage 0 and A, according to the Barcelona Clinic Liver Cancer System, radiation may be used in the following circumstance/s.
    A. Definitive RT is patient is not suitable for resection, transplant or RT
    B. RT as bridge to transplant (while waiting for transplant donor)
    C. Both A & B are correct
    D. No role for RT in this situation
A

C

45
Q

Liver
(from in-service bank)

23. There are five clinical and laboratory parameters that are important in the pretreatment evaluation of a patient with Hepatocellular Carcinoma. They are: Ascites, Bilirubin, Albumin, Prothrombin and \_\_\_\_\_\_\_\_.
	A. Platelet count
	B. Alkaline phosphatase
	C. Encephalopathy
	D. LVMH
A

C

46
Q

Liver
(from in-service bank)

  1. The following statement is true for the use of RT in Hepatocellular Carcinoma.
    A. HCC is a radiosensitive tumor. The surrounding normal liver tissue has poor tolerance to radiation.
    B. SBRT is the radiation technique of choice because of the large fraction size resulting in a higher BED.
    C. Image guidance (IGRT) allows better target localization.
    D. There is very minimal respiratory organ motion and intrafraction motion is not a problem.
A

D (parang mali yung question. Dapat except)

47
Q

Biliary Tract Cancer

What is the most common cancer of the biliary tract and accounts for two-thirds of these cancers?

A

gallbladder

48
Q

Biliary Tract Cancer

What is the term used to describe cancers arising from the epithelial cells of the bile ducts?

A

cholangiocarcinoma

49
Q

Biliary Tract Cancer

Surgical excision of all resectable biliary tract cancers is associated with a good
long-term survival, whereas for unresectable tumors, the treatment is usually
palliative aiming to relieve obstructive jaundice with drainage of bile and
management of biliary tract infection, pain, and ascites.

TRUE or FALSE?

A

True

50
Q

Biliary Tract Cancer

What is the major risk factor in developing ICC in Western countries, which is closely associated with chronic inflammatory bowel disease, particularly ulcerative colitis?

A

primary sclerosing cholangitis

51
Q

Biliary Tract Cancer

What flukes are associated with developing cholangiocarcinoma?

A

Clonorchis sinensis

Opistorchis viverrini

52
Q

Biliary Tract Cancer

Patients with extrahepatic tumor usually present with jaundice, acholic stools, and tea-colored urine.

Patients with intrahepatic tumors are less likely to be jaundiced and more likely to present with abdominal symptoms and more advanced disease.

Which is TRUE?

A

Both

53
Q

Biliary Tract Cancer

A serum CA 19-9 value >___ U/mL has a sensitivity of approximately 75% and a specificity of approximately 80%.

A

100

54
Q

Biliary Tract Cancer

Aside from CCa, what condition also presents with significantly increased biliary CEA levels?

A

intrahepatic cholelithiasis
***

Biliary CEA levels
increase significantly in patients with cholangiocarcinoma and also in patients
with intrahepatic cholelithiasis (average, 50.2 to 57.4 ng/mL) compared with
patients with benign strictures (average, 10.1 ng/mL) and patients with
sclerosing cholangitis and choledochal cysts (average, 20.0 to 21.6 ng/mL).

55
Q

Biliary Tract Cancer

Mixed HCC and cholangiocarcinoma can be detected by the elevation of this tumor marker.

A

serum AFP

56
Q

Biliary Tract Cancer

There are two main histologic subtypes of cholangiocarcinoma: bile ductular type (mixed), arising from large intrahepatic bile ducts, and bile duct type (mucinous), arising from small intrahepatic and extrahepatic bile ducts.

TRUE or FALSE?

A

False.

ductular (mixed) - small

bile duct (mucinous) - large

57
Q

Biliary Tract Cancer

What is the main histology of cholangiocarcinoma?

A

adenocarcinoma

58
Q

Biliary Tract Cancer

What are the three types of cholangiocarcinoma, adenocarcinoma.

Which is most common?

Which has the best prognosis?

A

sclerosing - most common

nodular

papillary - presents with obstructive symptoms hence early diagnosis and favorable prognosis

59
Q

Biliary Tract Cancer

Cholangiocarcinomas rarely invade lymphatic,
perineural, and periductal spaces, and portal tracts.

TRUE or FALSE?

A

False.

Frequently

60
Q

Biliary Tract Cancer

Mutations in p53 tumor suppressor gene and KRAS proto-oncogene have been identified in cholangiocarcinoma.

p53 overexpression and K-RAS mutations are associated with a _____ survival.

A

shortened

61
Q

Biliary Tract Cancer

IDH mutations block normal cellular differentiation and
promote tumorigenesis via the abnormal production of what oncometabolite?

A

D-2-hydroxyglutarate (2-HG)

62
Q

Biliary Tract Cancer

The incidence of lymph node metastasis in ICC ranges from 50% to 60%.

ICCs, irrespective of their intrahepatic location, mainly spread to which nodes?

A

hepatoduodenal ligament

then to paraaortic, retropancreatic, or common hepatic artery node group.

63
Q

Biliary Tract Cancer

Which type of cholangiocarcinoma tends to spread along the left gastric nodes through the lesser curvature?

A

The left peripheral type or hilar type

64
Q

Biliary Tract Cancer

Main nodes involved in perihilar cholangiocarcinoma

A

pericholedocal 43%
perioportal 31%
common hepatic nodes 27%
posterior pancreaticoduodenal 15%

The celiac and superior mesenteric nodes are rarely
involved

65
Q

Biliary Tract Cancer

Main nodes involved in distal cholangiocarcinoma

A

posterior pancreaticoduodenal 35%

hepatoduodenal 35%

common hepatic artery 30%

66
Q

Biliary Tract Cancer

In distal CC, paraaortic lymph node involvement occurred in 25% of patients and was
significantly associated with ________.
(Yoshida et al).

A

Pancreatic parenchymal invasion.

67
Q

Biliary Tract Cancer

TNM staging
Identify the T-stage for intrahepatic bile duct tumors:

Tumor perforating the visceral peritoneum

A

T3

68
Q

Biliary Tract Cancer

TNM staging
Identify the T-stage for intrahepatic bile duct tumors:

Tumor involving local extrahepatic structures by direct invasion

A

T4

69
Q

Biliary Tract Cancer

TNM staging
Identify the T-stage for intrahepatic bile duct tumors:

Solitary tumor with intrahepatic vascular invasion or multiple tumors without vascular invasion

A

T2

70
Q

Biliary Tract Cancer

TNM staging
Identify the T-stage for intrahepatic bile duct tumors:

Solitary tumor ≤5 cm without vascular invasion

A

T1a

T1b if >5 cm

71
Q

Biliary Tract Cancer

What is N1 in intrahepatic bile duct tumors?

What is the likely minimal stage?

A

+Regional nodal metastasis

Stage IIIB

72
Q

Biliary Tract Cancer

TNM staging
Identify the T-stage for perihilar bile duct tumors:

Tumor confined to the bile duct, with extension up to the muscle layer or fibrous tissue

A

T1

73
Q

Biliary Tract Cancer

TNM staging
Identify the T-stage for perihilar bile duct tumors:

Tumor invades unilateral branches of the PV or HA

A

T3

74
Q

Biliary Tract Cancer

TNM staging
Identify the T-stage for perihilar bile duct tumors:

Tumor invades beyond the wall of the bile duct to surrounding adipose tissue

A

T2a

75
Q

Biliary Tract Cancer

TNM staging
Identify the T-stage for perihilar bile duct tumors:

Tumor invades beyond the wall of the bile duct to adjacent hepatic parenchyma

A

T2b

76
Q

Biliary Tract Cancer

TNM staging
Identify the T-stage for perihilar bile duct tumors:

Tumor invades the main portal vein or its branches bilaterally or the CHA,

or unilateral second-order biliary radicals bilaterally with contralateral portal vein or hepatic artery involvement

A

T4

77
Q

Biliary Tract Cancer

What is N1 in perihilar bile duct tumors?

What is the likely minimal stage?

A

1-3 positive nodes (Typically involving the hilar, cystic duct, common bile duct, hepatic artery, posterior pancreaticoduodenal, and portal vein lymph nodes)

Stage IIIC

N2 is 4 or more (IVA)

78
Q

Biliary Tract Cancer

TNM staging
Stratify the distal bile duct tumors into T1-3 based on depth of invasion to the bile duct wall.

A

T1: <5 mm;
T2: 5–12 mm;
T3: >12 mm;

Tis: in situ/high-grade dysplasia;
T4: celiac axis, SMA, and/or CHA

79
Q

Biliary Tract Cancer

What is N1 in distal bile duct tumors?

A

N1 is 1-3 + nodes

N2 is 4 or more

80
Q

Biliary Tract Cancer

What is the most common location of BTCs?

A. Intrahepatic (ICC)
B. Perihilar
C. Distal

A

B

81
Q

Biliary Tract Cancer
Perihilar Cholangiocarcinoma

What is the Bismuth classification?

multicentric tumors

A

type IV

82
Q

Biliary Tract Cancer
Perihilar Cholangiocarcinoma

What is the Bismuth classification?

involve the confluence and both right and left hepatic ducts

A

type IV

83
Q

Biliary Tract Cancer
Perihilar Cholangiocarcinoma

What is the Bismuth classification?

tumors below the confluence of the right and left hepatic ducts

A

type I

84
Q

Biliary Tract Cancer
Perihilar Cholangiocarcinoma

What is the Bismuth classification?

tumors reaching the confluence

A

type II

85
Q

Biliary Tract Cancer
Perihilar Cholangiocarcinoma

What is the Bismuth classification?

tumors involving the CHD and the right or left hepatic ducts

A

types IIIA and IIIB

86
Q

Biliary Tract Cancer
Perihilar Cholangiocarcinoma

I. The role of postoperative radiotherapy with or without chemotherapy in patients with completely resected cholangiocarcinoma remains unproven. A retrospective analysis suggests that postoperative adjuvant radiation therapy does not improve survival.

II. Postoperative radiotherapy or chemoradiotherapy reduces the rate of local recurrence in patients with incomplete resection.

Which is TRUE?

A

Both

87
Q

Biliary Tract Cancer
Perihilar Cholangiocarcinoma

Patients with perihilar duct carcinomas have the highest rate of curative resection as compared to distal duct carcinomas.

TRUE or FALSE?

A

False.

Distal have the highest rate of curative resection

88
Q

Biliary Tract Cancer
Distal Cholangiocarcinoma

What is the chemotherapy of choice of advanced unresectable or metastatic cholangiocarcinoma?

A

gemcitabine +/- cisplatin

89
Q

Biliary Tract Cancer

GTV

A

any visible tumor by CT and/or MRI

90
Q

Biliary Tract Cancer

CTV

A

GTV + 1.5 cm (which includes nodes along the porta hepatis, pancreaticoduodenal system, and celiac axis)

91
Q

Biliary Tract Cancer

RT dose using coventional external beam RT

A

45 to 50 / 1.8 to 2 / 25 to 28 fx

92
Q

Biliary Tract Cancer
Gallbladder CA

Which of the following is/are not factors for developing gallbladder ca?

cholelithiasis

anomalous junction of pancreaticobiliary ducts

porcelain gallbladder

cigarette smoking

alcohol consumption

obesity

polyps >10 mm

chronic gallbladder bacterial infection

A

none of the above

93
Q

Biliary Tract Cancer
Gallbladder CA

What chronic bacterial infections are associated with the development of gallbladder cancer?

A

Salmonella typhi

Helicobacter bilis

94
Q

Biliary Tract Cancer
Gallbladder CA

Patients with T1a disease often are cured after simple cholecystectomy and require no further adjuvant treatment.

TRUE or FALSE?

A

True

95
Q

Biliary Tract Cancer
Gallbladder CA

What are the factors predictive for recurrence?

A

positive surgical margins,

lymph node metastasis,

and perineural invasion.

96
Q

Biliary Tract Cancer
(from in-service bank)

25. The primary lymphatic drainage of the biliary tract is to the lymphatic nodes in the following EXCEPT:
	A. Greater curvature
	B. Hepatoduodenal ligament
	C. Pancreaticoduodenal region
	D. Periportal region
A

A

97
Q

Biliary Tract Cancer
(from in-service bank)

  1. Choose the best answer regarding the management of cholangiocarcinoma.
    A. For unresectable intrahepatic cholangiocarcinoma (ICC), radiation can be given as EBRT, brachytherapy & SBRT.
    B. Targeted therapy is proven to increase overall survival of patients.
    C. The role of postoperative radiotherapy is proven to increase overall survival of patients.
    D. Total hepatectomy with liver transplantation is not an option for ICC.
A

A

98
Q

Biliary Tract Cancer
(from in-service bank)

27. A 60 year old man presents with significant weight loss and persistent RUQ pain. UTZ reveals a 0.6 cm stone and a 1.2 cm polyp. He undergoes a laparoscopic cholecystectomy. Histopath reveals a well differentiated gallbladder adenoCA invading up to the perimuscular connective tissue. Margins of resection are negative for tumor. Which of the following steps may NOT be considered.
	A. Adjuvant chemotherapy
	B. Adjuvant RT
	C. Adjuvant chemoRT
	D. Observe
A

D

Ph RadOnc Residency PBRROE2-3 Review 2021 (57 decks)

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