Presentation
Long history of neurological impairment.
Patient Data
Age: 40 years
Gender: Male
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Non contrast CT demonstrates a small posterior fossa with a low insertion of the tentorium. The foramen magnum is crowded and the tonsils are ectopic. The tectum is beaked.
The corpus callosum is dysgenic, and VP shunts are in situ.
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Lumbosacral spina bifeda is present. The radio-opaque structure anteriorly most likely represent the reservoir for an artificial urinary sphincter.