Pathology: Cysts due to echinococcus granulosa.
Aetiology: Consider in UK farmers, endemic in the Mediterranean, Australia, New Zealand, the Middle East, South America, Iceland and part of Africa.
Symptoms: Can be asymptomatic, right upper quadrant pain
Signs: Hepatomegaly
Investigations: Imaging: Ultrasound Abdomen may show hepatic cysts
Microbiology: Hydatid serology positive
Treatment: Conservative: No treatment if asymptomatic
Medical: Albendazole
Surgical: Incision and Drainage
Complications: Infection, rupture of biliary tree
Prognosis: Prognosis is generally good with surgical input