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Neuroglial Cyst/Low Grade Tumor
Case Detail
| Anatomy: Brain-Spine |
 Joseph Junewick, MD FACR |
| Diagnostic Category: Neoplasia Malignant |
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| Created: over 2 years ago |
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| Updated: over 2 years ago |
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| Tags:
PEDS
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| Modality/Study Types:
MR
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Activities:  PDF  ImageJA |
History
15 year old female with headache.
Case Images
Diagnosis
Neuroglial Cyst/Low Grade Tumor
Clinical Notes
Normal MR of the brain 4 years ago.
Findings
MR – Sagittal T1, coronal T2 and axial post-gadolinium T1 images of the brain demonstrate a nonenhancing ovoid nearly CSF equivalent lesion near the left foramen of Monro.
Discussion
Neuroglial cysts are benign epithelial-lined lesions that occur anywhere in the neuraxis. Neuroglial cysts represent fewer than 1% of intracranial cysts. The frontal lobe is the most typical location although numerous locations are possible; intraparenchymal neuroglial cysts are more common than extraparenchymal cysts. Neuroglial cysts are derived from embryonic neural tube elements that become sequestered. They are rounded, smooth, and unilocular and contain clear fluid that resembles CSF. They are lined by ependymal or choroid plexus cells. A neuroglial cyst is a variable sized nonenhancing CSF-like parenchymal cyst with minimal to no surrounding signal intensity abnormality. The cysts are benign-appearing lesions with smooth, rounded borders. Other lesions that may be mistaken for a neuroglial cyst include an enlarged perivascular space, infectious cyst (neurocysticercosis), porencephalic cyst, colloid cyst and arachnoid cyst.
Reference
Osborn AG, Preece MT. Intracranial Cysts: Radiologic-Pathologic Correlation and Imaging Approach. Radiology (2006); 239: 650-664.