178

FIGURE 178-1

FIGURE 178-2

FINDINGS Figures 178-1 and 178-2. NCCT through two levels of the posterior fossa. There is protrusion of the cerebellum, cerebrospinal fluid (CSF), and covering meninges through a large occipital bone defect (arrows). This produces a large bulge in the suboccipital region. The fourth ventricle is effaced.

DIFFERENTIAL DIAGNOSIS Occipital cephalocele (OC), Chiari III malformation (CIIIM).

DIAGNOSIS Occipital cephalocele (OC).

DISCUSSION

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