Demographics:
6 years old, Male
Indication:
Gait instability
Findings
- T1 hypointense, T2/FLAIR hyperintense lesion in the right eccentric tectum measuring 1.5 x 1 x 1.5 cm
- No corresponding enhancement or restricted diffusion
- Associated mass effect on the cerebral aqueduct with resultant obstructive hydrocephalus and mild subependymal edema
Annotated Images & Illustrations
T1 hypointense tectal mass (red arrow) with associated obstructive hydrocephalus at the level of the cerebral aqueduct. A rim of normal parenchyma along its superior margin (yellow arrow) helps exclude a pineal origin of this particular mass.
Diagnosis
Tectal glioma
Key Imaging Features
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Differential Diagnosis
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Discussion
Pearls
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