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  • Title: Hematoma in a low-grade medullary astrocytoma: report of an unusual case and literature review.
    Author: van Ouwerkerk WJ, Dirven CM.
    Journal: Childs Nerv Syst; 1998 Dec; 14(12):742-6. PubMed ID: 9881628.
    Abstract:
    We describe the case - to our knowledge unique - of an 8-year-old boy who presented with acute onset of lower cranial nerve palsy and tetraparesis caused by a hematoma in a dorsal exophytic pilocytic astrocytoma of the medulla oblongata. The boy showed near-complete recovery after neurosurgical management in two stages: first, emergency evacuation of the hematoma with tumor biopsy, and second, complete tumor removal 5 months after the initial event. Intraoperative electrophysiological monitoring techniques for the lower cranial nerves are of value in preserving their functional integrity. Ultrasonography is helpful in assessing the extent of tumor removal. Although the pathological diagnosis of a pilocytic astrocytoma would not justify radiotherapy, local field radiotherapy was added mainly because of the unexpectedly rapid tumor progression during the interval between the two surgical procedures. The literature on brainstem and tumor hematoma in children is reviewed.
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