From the case:
Calvarial thickening from chronic shunting
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CT scan scouts demonstrate moderate homogeneous thickening of the cranial vault, two ventriculoperitoneal shunts in-situ, and marked pneumatization of the frontal sinuses.
From the case:
Calvarial thickening from chronic shunting
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- moderate thickening of the cranial vault is noted with two ventriculoperitoneal shunts in-situ
- ex-vacuo dilatation of the left occipital horn secondary to left occipital encephalomalacia
- dysgenesis of the corpus callosum - the genu and anterior part of the body are present, but very thin; the remainder of the corpus callosum is not seen
- cerebellar tonsillar ectopia
- low-lying torcula
- possible basilar kyphosis (not actually measured, but angle seems exagerrated
- marked pneumatization of the frontal sinuses, suggesting pneumosinus dilatans
- mucosal thickening within the ethmoid sinuses
- marked pneumatization of the mastoids
Case Discussion
It is not known whether this patient had Chiari II malformation or not, but the constellation of intracranial findings suggest that this is a possibility.