Demographics:
17 years old, Male
Indication:
Diplopia
Findings
CT
- Heterogeneous attenuation pineal region mass with peripheral hyperattenuation and foci of calcification
- Associated downward mass effect on the tectum and cerebral aqueduct with resultant obstructive hydrocephalus
MRI
- Heterogeneously enhancing pineal region mass measuring 4 x 3.4 x 3 cm
- The mass is predominantly T1 hypointense and T2 hyperintense and demonstrates extensive susceptibility artifact along its periphery
- Mild adjacent parenchymal edema in the right thalamus
- Associated downward mass effect on the tectum and cerebral aqueduct with resultant obstructive hydrocephalus
Diagnosis
Teratoma (pineal region)
Key Imaging Features
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Differential Diagnosis
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Discussion
Pearls
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