Kazumasa Fukuda

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Although lumbar drainage (LD) is widely used in skull base surgery (SBS), no cases with intracranial hypotension (IH) following LD-assisted SBS have been reported, and skull base surgeons lack awareness of this potentially life-threatening condition. We report two cases of IH after LD-assisted SBS, a spheno-orbital meningioma and an osteosarcoma in the(More)
Gliomas arising in the brain parenchyma infiltrate into the surrounding brain and break down established complex neuron-glia networks. However, mounting evidence suggests that initially the network microenvironment of the adult central nervous system (CNS) is innately non-permissive to glioma cell invasion. The main players are inhibitory molecules in CNS(More)
Primary dural lymphoma (PDL) is a rare type of primary central nervous system lymphoma (PCNSL); however, its clinical etiology and appearance on magnetic resonance images (MRI) are similar to those of meningioma. We report a case of PDL mimicking a meningioma in the jugular tubercle, with hemiparesis and double vision, and review the published PDL case(More)
Non-traumatic intracranial acute epidural hematoma(EDH)is rare. It is mostly caused by coagulation disorders, dural metastasis, or vascular malformations of the dura. We report a case of non-traumatic acute EDH caused by chronic nasal sinusitis and review the literature comprising 10 cases of acute EDH caused by chronic nasal sinusitis. A 16-year-old boy(More)
Intermittent monitoring of abnormal muscle response (iAMR) has been reported to be useful for improving the surgical outcome of microvascular decompression (MVD) for hemifacial spasm (HFS). However, iAMR has not elucidated the relationship between AMR change and the corresponding surgical procedure, or the pathogenesis of AMR and HFS. The purpose of this(More)
BACKGROUND AND OBJECTIVES Endoscopic endonasal transsphenoidal surgery has been performed because of its advantages such as less invasive surgical management and more aggressive tumor removal of extrasellar lesions. In 2003, we began endoscope-assisting surgery. In 2006, we completely switched to the endoscopic endonasal approach without microscope or nasal(More)
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