Demographics:
13 years old, Female
Indication:
Left-sided weakness
Findings
CT
- Cystic mass with a solid nodule along its lateral wall in the right frontoparietal region
- No corresponding calcification
MRI
- Large cystic mass in the right frontoparietal region measuring 6 x 5.7 x 4 cm
- Enhancing mural nodule along its lateral wall measuring up to 2.5 cm in craniocaudal span
- Wispy strands of enhancement extend from this nodule to the superior margin of the cyst
- Thin peripheral enhancement of the cystic component
- Incomplete internal signal suppression on FLAIR
- No corresponding restricted diffusion
- Mild surrounding vasogenic edema
- Associated mass effect with crowding of the atrium of the right lateral ventricle and 3 mm right-to-left midline shift
- No evidence of downward transtentorial herniation or hydrocephalus
Diagnosis
Ganglioglioma
Differential Diagnosis
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