PMC9945302_01
(a) Case 1 - Sagittal T2-weighted image - shows defect in occipital bone with occipital meningoencephalocele, and crowding of foramen magnum, gross hydrocephalus, and frontal leptomeningeal cyst. J shaped Sella and scalloping of clivus is also seen. Prominent flow void is noted in region of Liliequist membrane between interpeduncular cistern and third ventricle (*). (b) Case 1 - Coronal T1-weighted image revealing multiple segmentation anomalies in cervical spine. (c) Case 2 - Sagittal T2-weighted image revealing small posterior fossa with inferior herniation of brainstem and cerebellum along with high cervical encephalocele. Prominent CSF flow void is noted at the site of Liliequist membrane (^). (d) Case 2 - Coronal T2WI showing multiple incarcerated hemivertebrae in cervical spine.
JNRP-14-137-g001.jpg
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F1
In supratentorial area, the right frontal lobe porencephalic cyst herniating extracranially through defect in dura mater and frontal bone was identified suggestive of leptomeningeal cyst [Figure 1a]. Mild dilation of bilateral lateral and third ventricle was also noted [Figure 1c].