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AJP Rep 2014; 4(01): 033-036
DOI: 10.1055/s-0034-1370351
Case Report
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Cloaca in Discordant Monoamniotic Twins: Prenatal Diagnosis and Consequence for Fetal Lung Development

Yvon Chitrit
1   Department of Obstetrics and Gynecology, Robert Debré Hospital-AP-HP, Paris, France
,
Edith Vuillard
1   Department of Obstetrics and Gynecology, Robert Debré Hospital-AP-HP, Paris, France
,
Sunavy Khung
2   Department of Developmental Biology, Robert Debré Hospital-AP-HP, Paris, France
,
Nadia Belarbi
3   Department of Pediatric Imaging, Robert Debré Hospital-AP-HP, Paris, France
,
Fabien Guimiot
2   Department of Developmental Biology, Robert Debré Hospital-AP-HP, Paris, France
,
Francoise Muller
4   Laboratory of Biochemistry and Hormonology, Robert Debré Hospital-AP-HP, Paris, France
,
Alaa El Ghoneimi
5   Department of Pediatric Urology and Surgery, Robert Debré Hospital-AP-HP, Paris, France
,
Jean Francois Oury
1   Department of Obstetrics and Gynecology, Robert Debré Hospital-AP-HP, Paris, France
› Author Affiliations
Further Information

Publication History

27 September 2013

30 December 2013

Publication Date:
03 March 2014 (online)

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Abstract

Objective Describe a case of cloaca prenatally diagnosed in one of a set of monoamniotic twins.

Study Design Retrospective review of a case.

Results Cloaca is one of the most complex and severe degrees of anorectal malformations in girls. We present a discordant cloaca in monoamniotic twins. Fetal ultrasound showed a female fetus with a pelvic midline cystic mass, a phallus-like structure, a probable anorectal atresia with absence of anal dimple and a flat perineum, and renal anomalies. The diagnosis was confirmed by fetal magnetic resonance imaging postnatally.

Conclusions The rarity of the malformation in a monoamniotic pregnancy, the difficulties of prenatal diagnosis, the pathogenic assumptions, and the consequences of adequate amniotic fluid for fetal lung development are discussed.

Keywords

prenatal diagnosis - persistent cloaca - monoamniotic twins - fetal lung development - discordant
 

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