Fetus in Fetu: Is it a Baby Inside a baby?
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چکیده
Submit Manuscript | http://medcraveonline.com abdominal mass. It is usually retroperitoneal or intraperitoneal but may also be present in scrotum or in cranial cavity [1]. Several theories have been given regarding the pathogenesis. One such theory explains the pathogenesis of fetus in fetu as ‘included twin theory’ in which the fetus in fetu represents an aberration of monochorionic diamniotic monozygotic twinning in which unequal division of the totipotent inner cell mass of the developing blastocyst leads to the inclusion of smaller cell mass within a maturing sister embryo due to persistent anastomosis of vitelline circulation. So the fetus is surrounded by a membrane analogous to amniotic sac and supplied by a single feeding vessel. A true placenta is usually absent.
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Double fetus in fetu.
Fetus in fetu (FIF) is an extremely rare cause of infantile abdominal mass where a rudimentary, malformed monozygotic-diamniotic twin grows inside the other twin. We describe a male infant with double or twin fetuses in fetu. The diagnosis was made on a computerized tomography (CT) scan of the abdomen and confirmed on surgery. Surgical excision was done and the baby did well post operatively.
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