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.
In approximately 50% of cases, associated malformations are found, including 2
It can occur as part of the Currarino triad 3.
Scimitar sacrum is a classically described finding on plain film.
General imaging differential considerations include:
- 1. Krivokapić Z, Grubor N, Micev M et-al. Anterior sacral meningocele with presacral cysts: report of a case. Dis. Colon Rectum. 2004;47 (11): 1965-9. - Pubmed citation
- 2. Dahan H, Arrivé L, Wendum D et-al. Retrorectal developmental cysts in adults: clinical and radiologic-histopathologic review, differential diagnosis, and treatment. Radiographics. 21 (3): 575-84. Radiographics (citation) - Pubmed citation
- 3. Calihan RJ. Anterior sacral meningocele. Radiology. 1952;58 (1): 104-8. Radiology (citation) - Pubmed citation