Case 55: Fetus in Fetu

Varanelli, Michael J.; Bokhari, Syed A. Jamal; Katai, Freddy M.; Scoutt, Leslie M.

doi:10.1148/radiol.2262010624

Cited by 10 publications

(5 citation statements)

References 10 publications

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“…Presence of vertebral axis and appropriate arrangement of other organs or limbs in its relation are the criteria to distinguish a fetus in fetu from a rachipagus and highly differentiated teratoma. 1,5,6,20 We did not find any vertebral structures in our patient's specimen. The appearances, the externalmidline location of the parasitic mass, and the presence of intestinal mucosal loop suggested the presence of conjoined twinning.…”

contrasting

confidence: 48%

Dorsolumbar Parasitic Rachipagus Twin, Case Report

Awad¹,

Elsayem²,

Elqazaz³

2016

Egyptian Spine Journal

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Background Data: Siamese twins are joined by a part of their body at birth and the causes of the merger are often unknown. When the merger is on the spine it is rachipagus. It is an extremely rare and strange condition, and there are only a few documented cases in the literature. We present one additional case of parasite rachipagus on the dorsolumbar level. Purpose: Our aim is to describe a girl with a parasitic twin attached to her lower back, combined with a spina bifida and a lipomyelomeningocele. Study Design: Case report and review of the literature Patient and Method: In September 2014, a female baby from North Sinai was referred to Suez Canal University Hospital. She was 1 month old and had an extra well developed parasitic twin attached to her back. She was surgically treated in the Neurosurgery and Pediatric Surgery Departments. Results: A rare example of rachipagus conjoint parasitic twinning in a newborn girl is described. A lipomatous mass, a rudimentary intestinal loop with an attached atrophic pelvis and hind limb were found adherent to the dorsal vertebral arches of the autosite in the thoracolumbar region. Surgical excision of the parasitic twin, excision of the dorsal lipoma, repair of the cord and wound repair were done Conclusion: Parasitic rachipagus is a rare embryogenic malformation with a good surgical prognosis on the autosite in the absence of associated congenital anomalies. (2016ESJ111)

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contrasting

confidence: 48%

Dorsolumbar Parasitic Rachipagus Twin, Case Report

Awad¹,

Elsayem²,

Elqazaz³

2016

Egyptian Spine Journal

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“…Fetus in fetu is a very rare condition, with a reported incidence of one in 5000 000 live births 1. It is a malformed parasitic monozygotic diamniotic twin that is found inside the body of the living child or adult 2. Hoeffel et al 2 provide an excellent and very complete literature review of 88 cases including their own a case.…”

Section: Descriptionmentioning

confidence: 99%

“…It is a malformed parasitic monozygotic diamniotic twin that is found inside the body of the living child or adult 2. Hoeffel et al 2 provide an excellent and very complete literature review of 88 cases including their own a case. The mass is located in the retroperitoneum in 80% of cases.…”

Section: Descriptionmentioning

confidence: 99%

Fetus in fetu in the back

Peng

Li²

2012

Case Reports

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“…Its incidence is reported to be 1 in 500,000 births. 1,6,7 It affects males twice as often as females, and most patients present with symptoms during the first year of life. 8 Fetus in fetu has also been documented in different age groups.…”

Section: 5mentioning

confidence: 99%

“…16,17 Others suggest that fetus in fetu represents a monozygotic diamniotic twinning abnormality where one twin in a monochorionic, diamniotic pregnancy becomes enclosed inside its karyotypically identical co-twin. 7 The distinction between a teratoma and a twinning abnormality is often difficult. 8 Despite the difficulty in distinguishing between a teratoma and fetus in fetu, Willis 2 reported that clinical and pathological criteria can be integral in making the diagnosis.…”

Section: -15mentioning

confidence: 99%

Fetus in Fetu

Ghazle

Dolbow

2009

Journal of Diagnostic Medical Sonography

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Fetus in fetu is a congenital abnormality in which a nonviable, parasitic fetus grows within its twin. It is a rare cause of retroperitoneal abdominal mass in infants and children. The authors report a recent case of a six-month-old girl who presented with unexplained abdominal distention. A sonogram and a magnetic resonance imaging examination showed a multiloculated, complex cystic mass with calcified and soft tissue components. A definitive diagnosis and discrimination from a teratoma was difficult to make because of the absence of a distinctive criterion, the presence of a vertebral column. Pathologic examination showed a complex mass consisting of well-formed bowel and upper respiratory tract segments as well as mature neuroglial tissue, skeletal muscle tissue fibers, and bone tissue that contained bone marrow, supporting the diagnosis of fetus in fetu. Therefore, the nonvisualization of a vertebral column on imaging should not exclude fetus in fetu from the differential diagnosis.

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Case 55: Fetus in Fetu

Cited by 10 publications

References 10 publications

Dorsolumbar Parasitic Rachipagus Twin, Case Report

Dorsolumbar Parasitic Rachipagus Twin, Case Report

Fetus in fetu in the back

Fetus in Fetu

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