<prompt> A 40 year old male presents with a painless cystic liver enlargement of four years duration without fever or jaundice. The most likely diagnosis isAmoebic liver abscessHepatomaHydatid cyst of liverCholedochal cyst  <response>: Clinical features of hydatid disease Equally common in males and females, age 45 years Most75 are singular, located in right liver Mostly asymptomatic until complications occur Most common presenting symptoms - abdominal pain, dyspepsia and vomiting Most common sign- Hepatomegaly Ref:Sabiston 20th edition Pgno :1452 