Fetus in fetu: report of three cases and review of the literature

Multiple fetuses in fetu:imaging findings

“…It is an extremely rare entity with an incidence of 1:500,000 births and multiple fetus in fetu is even more uncommon [1,2,3,4,5].This condition has a 2:1 male predominance, with most patients presenting in the first year of life with an abdominal mass.…”

Fetus in Fetu…A Rare Case Report!!!

“…Fetus-in-fetu is usually single, however possibly multiple, aberration of monozygotic diamniotic twinning in which unequal division of the totipotent inner cell mass of the developing blastocyst leads to the inclusion of a smaller cell mass within a maturing sister embryo. [1] Thakral et al [2] reported equal male and female prevalence but Patankar et al [3] and Federici et al [4] noted a 2:1 male predominance. The common presentation of fetus in fetu is most commonly in the abdomen, almost 80% in the retroperitoneum followed by abdomen, scrotum, cranium, kidneys, adrenals, mediastinum, and lymph nodes etc.…”

“…Preoperative diagnosis can be made on plain radiographs and CT scan/MRI [5]. The presence of vertebrae, long bones, bones of hands and feet etc are the common radiological findings.…”

A Rare Case Report of Foetus in Foetu

“…(3,4) The number of foetuses in foetu is usually single; however, multiple foetuses in foetu have been reported. (5) The intent of this case report is to describe the characteristic USG, computed tomographic (CT), and MRI findings of this unusual entity.…”