Fetus in fetu is a from of monozygotic diamniotic twin pregnancy where the parasitic twin installs and grows in the body of its partner. It is a rare condition, with a reported incidence of 1 in 500.000 live births. The majority of these cases occur in children younger than 18 months with the chief complaint of an intraabdominal mass,and have a 2:1 male predominance. The size and weight of the …