Referred with a headache and intractable vomiting and ataxia.
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Evidence of pons swelling and enlargement replaced by large ill-defined mass with some foci of hemorrhage is noted which is extended caudally. This mass has minimal enhancement after gadolinium injection. Compression effect on 4th ventricle caused obstructive hydrocephalus. Encasement of the basilar artery is noted in some parts without narrowing or occlusion.
The pons is the most common location for brainstem glioma. Brainstem gliomas account for about 25% of all posterior fossa tumors and are most common in children between 7 and 9 years of age 1. No gender or racial predilection is seen. Prognosis of diffuse brain stem glioma is terrible with 90-100% die within 2 years after diagnosis 2.
- 1. McLone DG, Neurosurgeons AS, Neurosurgery AA. Pediatric neurosurgery, surgery of the developing nervous system. W B Saunders Co. (2001) ISBN:072168209X.
- 2. Keating RF, Goodrich JT, Packer RJ. Tumors of the pediatric central nervous system. George Thieme Verlag. (2001) ISBN:0865778485.