Question
The most common route of spread in a case of pyogenic liver abscess is:
| A. |
Haematogenous through portal vein |
| B. |
Ascending infection through biliary duct |
| C. |
Hepatic artery |
| D. |
Local spread |
Show Answer
|
Correct Answer » B Explanation |
 |
The most common route of spread for Pyogenic liver abscess is ascending biliary infection
- Common underlying causes:
- Cholangitis
- Biliary obstruction
- Gallstones
- Biliary strictures
- Organisms ascend from the biliary tract into the liver causing abscess formation.
Why Other Options are Incorrect
A. Haematogenous through portal vein
- Previously common due to:
- Appendicitis
- Intra-abdominal sepsis
- Now less common than biliary spread.
C. Hepatic artery
- Seen in:
- Septicemia
- Infective endocarditis
- Uncommon route.
D. Local spread
- Can occur from adjacent infection:
- Subphrenic abscess
- Perforated viscus
- Rare compared to biliary spread.