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A major birth defect representing the severe end of the spectrum of the exstrophy-epispadias complex (EEC) characterized by omphalocele, exstrophy, imperforate anus and spinal defects (also referred to as the OEIS complex), often associated with other malformations.
Features include very common findings: Abnormal clitoris morphology, Vesicoureteral reflux, Omphalocele, and Bladder exstrophy and others; and common findings: Talipes equinovarus, Anal atresia, Spina bifida, and Myelomeningocele and others. 24 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Kidneys and urinary system | 3 | Horseshoe kidney, Ectopic kidney, Renal hypoplasia/aplasia |
Biomarker and diagnostic research for cloacal exstrophy has been reported in the published literature.
Phenotype severity distribution: 6 very common features, 11 common features.
Estimated prevalence: 1-9 in 1,000,000 (Rare).
No clinical trials have been registered for cloacal exstrophy.
49 publications have been identified in PubMed for cloacal exstrophy. Research spans Case Report / Case Series (37%), Clinical Trial Publication (22%), and Epidemiology / Natural History (16%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 18 | 37% |
Data assembled from 4 of 12 sources · Last updated Sep 18, 2026, 12:10 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about cloacal exstrophy
Digestive system |
2 |
Intestinal malrotation, Intestinal duplication |
Arms and legs | 1 | Absent foot |
11 |
22% |
Disease patterns and progression | 8 | 16% |
Research summaries | 6 | 12% |
Laboratory research | 4 | 8% |
Testing and diagnosis research | 1 | 2% |
New treatment approaches | 1 | 2% |
Yang J (2026). [PMID: 40447504](https://pubmed.ncbi.nlm.nih.gov/40447504/). *Journal of pediatric urology*. [Clinical Trial Publication]
Calvillo-Ramirez A (2026). [PMID: 42035618](https://pubmed.ncbi.nlm.nih.gov/42035618/). *J Pediatr Urol*. [Review / Meta-Analysis]
Mtafu NH (2026). [PMID: 41836466](https://pubmed.ncbi.nlm.nih.gov/41836466/). *International medical case reports journal*. [Epidemiology / Natural History]
Chen WA (2026). [PMID: 42036192](https://pubmed.ncbi.nlm.nih.gov/42036192/). *Taiwan J Obstet Gynecol*. [Case Report / Case Series]
Weiss DA (2026). [PMID: 42086424](https://pubmed.ncbi.nlm.nih.gov/42086424/). *J Pediatr Urol*. [Basic Science / Preclinical]
Kymäläinen E (2026). [PMID: 41719822](https://pubmed.ncbi.nlm.nih.gov/41719822/). *Journal of pediatric urology*. [Clinical Trial Publication]
Haveliwala Z (2026). [PMID: 41015280](https://pubmed.ncbi.nlm.nih.gov/41015280/). *Journal of pediatric surgery*. [Case Report / Case Series]
Morales-Tisnés T (2026). [PMID: 42142175](https://pubmed.ncbi.nlm.nih.gov/42142175/). *Pediatr Radiol*. [Clinical Trial Publication]
Crigger CB (2026). [PMID: 42092585](https://pubmed.ncbi.nlm.nih.gov/42092585/). *J Pediatr Surg*. [Clinical Trial Publication]
Yazawa O (2026). [PMID: 41891914](https://pubmed.ncbi.nlm.nih.gov/41891914/). *Congenit Anom (Kyoto)*. [Case Report / Case Series]