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Intracranial neurenteric cysts: imaging and pathology spectrum
M T Preece1, A G Osborn, S S Chin
1Department of Radiology, University of Utah, Salt Lake City, UT, USA.
AJNR. American Journal of Neuroradiology
|June 16, 2006
Summary
Intracranial neurenteric (NE) cysts are rare congenital lesions. This study details their broad imaging spectrum and pathology, aiding differential diagnosis for cystic brain lesions.
Area of Science:
- Neurology
- Radiology
- Pathology
Background:
- Intracranial neurenteric (NE) cysts are uncommon congenital malformations.
- They can be misdiagnosed as other non-neoplastic cysts or cystic tumors.
- Understanding their imaging and pathology is crucial for accurate diagnosis.
Purpose of the Study:
- To delineate the imaging spectrum of intracranial NE cysts.
- To describe their pathological findings.
- To aid in the differential diagnosis of cystic intracranial lesions.
Main Methods:
- Retrospective analysis of 18 patients with intracranial NE cysts.
- Inclusion of imaging (CT, MRI), surgical, and pathological data.
- Clinical follow-up for cases with classic imaging findings.
Main Results:
- Cysts were predominantly in the posterior fossa (13/18) and extra-axial (12/13).
- MRI revealed hyperintensity to CSF on T2-weighted and FLAIR sequences.
- CT showed variable attenuation without enhancement; mild rim enhancement was noted in some cases.
Conclusions:
- The imaging spectrum of intracranial NE cysts is wider than previously recognized.
- Consider NE cysts in the differential diagnosis of extra-axial cystic lesions.
- This aids in distinguishing them from other intracranial cystic pathologies.
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