A 32-year-old woman was admitted to hospital complaining of right upper quadrant and epigastrium abdominal pain, and nausea. On routine physical examination an abdominal mass was discovered on the right upper quadrant. Liver tests were normal. Magnetic resonance imaging of the abdomen revealed a low-density cystic mass. A cystectomy was performed. Hydatid sand containing a protoscolex of Echinococcus granulosus was seen on microscopical examination. Specific antiparasitic treatment was given and after two months the patient is asymptomatic