2010-08-19-15 OEIS complex © Lumluk www.TheFetus.net
OEIS complex
Tharinee Lumluk, MD., Nattinee Srisantiroj, MD. , Prapon Jaruyawong MD.
Department of Obstetric and Gynecology, Rajavithi hospital, Bangkok,Thailand.
Case report
This is a case of a healthy 27-year-old G1 P0 who was presented to our department at 23 weeks of gestation. She had non-contributive family or personal history. She was referred from another center for a suspicion of spina bifida.
Our ultrasound examination revealed the following findings:
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Myelomeningocele
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Bladder exstrophy
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Omphalocele
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Club feet
Our differential diagnosis included Omphalocele-Exstrophy-Imperforate anus-Spinal defects, OEIS complex. Patient decided for the pregnancy termination. Autopsy examination confirmed our ultrasound findings and described anal atresia as well.
Images 1,2: Image 1 shows an axial view, note the "banana" sign and abnormal appearance of the posterior fossa. Image 2 shows a mass protruding form the abdominal wall, located between the legs of the fetus.
Images 3,4: Image 3 shows insertion of the umbilical cord to the mass, which indicates omphalocele. Image 4 shows the mass between the legs, note the absence of the urinary bladder on all the images.
Images 5,6: Images of the abdominal mass, urinary bladder can not be seen. There is a normal amount of the amniotic fluid.

Images 7: Doppler of the umbilical artery.

Images 8,9: Fetus after pregnancy termination, note the myelomeningocele.
Images 10,11: Omphalocele, bladder exstrophy and anal atresia.