Medullomyoblastoma: A rare case in an unusual location in an
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Medullomyoblastoma is a variant of medulloblastoma with an aggressive course. It is typically seen in children less than 10 years of age and usually arises from the cerebellar vermis. Authors report an unusual case of medullomyoblastoma arising from the right middle cerebellar peduncle in an adult patient and pertinent literature is reviewed regarding this uncommon entity. A 32-years-old male presented with two months history of gait ataxia. On examination right hemiparesis (4/5, MRC grading), left VII nerve paresis (H and B grade III) and right cerebellar signs were present. Rest of the neurological examination was normal. Head CT revealed a heterogeneous solid cystic mass arising from the brainstem and extending to right cerebellopontine angle. MRI revealed a right middle cerebellar peduncle lesion (33 × 30 × 28 mm) extending to right cerebellopontine angle with necrotic and hemorrhagic areas.

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