Demographics:
38 years old, Male
Indication:
Headache
Findings
- Mildly FLAIR hyperintense intraventricular mass in the body of the left lateral ventricle measuring 4.3 x 3.7 cm in axial dimensions with heterogeneous corresponding enhancement and restricted diffusion
- The mass broadly contacts the septum pellucidum
- Associated mass effect with 1.5 cm left-to-right midline shift
- Crowding of the foramen of Monro with enlargement of the left greater than right lateral ventricles, consistent with obstructive hydrocephalus
- T1 isointense, FLAIR hyperintense material alongside the mass and layering in the left greater than right lateral ventricles and third ventricle, most likely representing hemorrhage (likely related to ventricular drain placement)
- Left frontal approach external ventricular drain terminates alongside or within the intraventricular mass. Mild edema along the parenchymal course of the catheter
Annotated Images & Illustrations
Mildly FLAIR hyperintense mass in the left lateral ventricle abutting the septum pellucidum (red arrow). Hyperintense material layering in the left lateral ventricle likely representing hemorrhage (yellow arrow).
Corresponding heterogeneous enhancement.
Diagnosis
Central neurocytoma
Key Imaging Features
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Differential Diagnosis
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Discussion
Pearls
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