Benign Diseas Of Liver Flashcards
1
Q
- What are the most common benign liver tumors?
A
Hemangioma
2
Q
- What percentage of the population has benign liver lesions?
A
Up to 20%.
3
Q
- What is the most common benign liver tumor?
A
Hepatic hemangioma.
4
Q
- What is the gender predominance for hepatic hemangiomas?
A
60-80% occur in females.
5
Q
- What is the typical age of presentation for hepatic hemangiomas?
A
Third to fifth decades of life.
6
Q
- What is the proposed role of estrogen in hepatic hemangiomas?
A
Estrogens may play a role in their pathogenesis
7
Q
- What is the blood supply of hepatic hemangiomas?
A
Derived from the hepatic artery.
8
Q
- What is considered a giant hemangioma?
A
Hemangiomas larger than 5 cm.
9
Q
- What are the microscopic features of hepatic hemangiomas?
A
Benign endothelium along vascular channels separated by thin connective tissue.
10
Q
- What are the clinical features of hepatic hemangiomas?
A
Typically asymptomatic
11
Q
- What are the life-threatening complications of hepatic hemangiomas?
A
Rupture
12
Q
- What is the mortality rate for spontaneous rupture of a hepatic hemangioma?
A
Approximately 35%.
13
Q
- What imaging findings are diagnostic for hepatic hemangiomas on CT?
A
Early peripheral nodular enhancement with centripetal filling.
14
Q
- What is the sensitivity and specificity of MRI for hepatic hemangiomas?
A
91% sensitivity and 92% specificity.
15
Q
- What is the treatment for asymptomatic hepatic hemangiomas?
A
Observation with no follow-up imaging for lesions ≤5 cm.
16
Q
- What are the indications for surgical intervention in hepatic hemangiomas?
A
Severe symptoms
17
Q
- What is focal nodular hyperplasia (FNH)?
A
The second most common benign solid liver tumor
18
Q
- What is the gender predominance for FNH?
A
8:1 female-to-male ratio.
19
Q
- What is the typical age of presentation for FNH?
A
35 years old.
20
Q
- What is the association between FNH and oral contraceptives?
A
Controversial
21
Q
- What are the pathological features of FNH?
A
Central scar (80%) and bile duct proliferation (100%).
22
Q
- What is the treatment for FNH?
A
Observation
23
Q
- What is hepatocellular adenoma?
A
A benign liver tumor predominantly seen in young females
24
Q
- What is the gender predominance for hepatocellular adenoma?
A
11:1 female-to-male ratio.
25
Q
- What are the risk factors for hepatocellular adenoma?
A
OCP use
