Anterior sacral meningocele is a congenital defect seen in the anterior aspect of the spine. It is defined as a meningeal cyst that occurs in the presacral space secondary to agenesis of a portion of the anterior sacrum.
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Pathology
Associations
In approximately 50% of cases, associated malformations are found, including 2:
It can occur as part of the Currarino triad 3.
Radiographic features
Plain radiograph
Scimitar sacrum is a classically described finding on plain film.
Differential diagnosis
General imaging differential considerations include:
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