OEIS complex
Citation, DOI, disclosures and article data
Citation:
Weerakkody Y, Rasuli B, Bell D, et al. OEIS complex. Reference article, Radiopaedia.org (Accessed on 26 Mar 2025) https://doi.org/10.53347/rID-12797
rID:
12797
Article created:
Disclosures:
At the time the article was created Yuranga Weerakkody had no recorded disclosures.
View Yuranga Weerakkody's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Bahman Rasuli had no recorded disclosures.
View Bahman Rasuli's current disclosures
Revisions:
4 times, by
4 contributors -
see full revision history and disclosures
Systems:
Synonyms:
- OEIS syndrome
The OEIS complex refers to the combined occurrence of:
- an omphalocele
- bladder exstrophy / cloacal exstrophy
- an imperforate anus
- and spinal anomalies: e.g
Epidemiology
The estimated occurrence is at around 1-200,000 to 400,000 live births 1,8.
Pathology
Possible embryologic mechanisms proposed for these findings include 7
- a single defect of early blastogenesis or
- a defect of mesodermal migration during the primitive streak period
Associations
Markers
References
- 1. Smith NM, Chambers HM, Furness ME et-al. The OEIS complex (omphalocele-exstrophy-imperforate anus-spinal defects): recurrence in sibs. J. Med. Genet. 1992;29 (10): 730-2. J. Med. Genet. (abstract) - Free text at pubmed - Pubmed citation
- 2. Carey JC, Greenbaum B, Hall BD. The OEIS complex (omphalocele, exstrophy, imperforate anus, spinal defects). Birth Defects Orig. Artic. Ser. 1978;14 (6B): 253-63. - Pubmed citation
- 3. Girz BA, Sherer DM, Atkin J et-al. First-trimester prenatal sonographic findings associated with OEIS (omphalocele-exstrophy-imperforate anus-spinal defects) complex: a case and review of the literature. Am J Perinatol. 1998;15 (1): 15-7. doi:10.1055/s-2007-993891 - Pubmed citation
- 3. Wax JR, Pinette MG, Smith R et-al. First-trimester prenatal sonographic diagnosis of omphalocele-exstrophy-imperforate anus-spinal defects complex. J Clin Ultrasound. 37 (3): 171-4. doi:10.1002/jcu.20520 - Pubmed citation
- 5. Vasudevan PC, Cohen MC, Whitby EH et-al. The OEIS complex: two case reports that illustrate the spectrum of abnormalities and a review of the literature. Prenat. Diagn. 2006;26 (3): 267-72. doi:10.1002/pd.1394 - Pubmed citation
- 6. Källén K, Castilla EE, Robert E et-al. OEIS complex--a population study. Am. J. Med. Genet. 2000;92 (1): 62-8. Am. J. Med. Genet. (link) - Pubmed citation
- 7. Keppler-noreuil KM. OEIS complex (omphalocele-exstrophy-imperforate anus-spinal defects): a review of 14 cases. Am. J. Med. Genet. 2001;99 (4): 271-9. Am. J. Med. Genet. (link) - Pubmed citation
- 8. Noack F, Sayk F, Gembruch U. Omphalocoele-exstrophy-imperforate anus-spinal defects complex in dizygotic twins. Fetal. Diagn. Ther. 20 (5): 346-8. doi:10.1159/000086810 - Pubmed citation
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