Types of liver cysts
Liver cysts vary in cause and behaviour:
- Simple cysts — benign fluid-filled sacs, often asymptomatic and discovered incidentally
- Polycystic liver disease — multiple cysts, usually associated with polycystic kidney disease
- Hydatid cysts — caused by Echinococcus parasite, requiring complete removal to prevent recurrence
- Cystadenomas — premalignant cystic tumours that require surgical excision
- Abscesses — pus-filled cavities from bacterial or amoebic infection, sometimes requiring drainage

