Search results for: Yoshihiro Numagami

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article

Sinus thrombosis in idiopathic hypereosinophilic syndrome causing fatal cerebral haemorrhage

Yoshihiro Numagami, Takahiro Tomita, Kensuke Murakami, Iwasaki Masaki, more

Journal of Clinical Neuroscience > 2008 > 15 > 5 > 585-587

Idiopathic hypereosinophilic syndrome (HES) is a leukoproliferative disorder that is characterized by sustained overproduction of eosinophils and a trend towards damage to specific organs, usually the cardiovascular system. We report the case of a 76-year-old woman who was affected by idiopathic HES, which had an unusual and rapidly fatal course. Sinus thrombosis in the transverse and sigmoid sinuses...

article

Postpartum dissecting aneurysm of the posterior cerebral artery

Tomoo Inoue, Shinjitsu Nishimura, Nakamasa Hayashi, Yoshihiro Numagami, more

Journal of Clinical Neuroscience > 2007 > 14 > 6 > 576-581

Intracranial dissecting aneurysm may cause subarachnoid hemorrhage (SAH) or infarction, and postpartum dissecting aneurysm is rare. A 30-year-old 6 days postpartum woman presented with posterior cerebral artery (PCA) dissection evolving dramatically over a short period. She had been well until 6 days after delivery when she suffered sudden onset of headache, vomiting, and unconsciousness. CT scan...

article

Ectopic recurrence of dysplastic gangliocytoma of the cerebellum (Lhermitte–Duclos disease): a case report

Tomoo Inoue, Shinjitsu Nishimura, Nakamasa Hayashi, Yoshihiro Numagami, more

Brain Tumor Pathology > 2007 > 24 > 1 > 25-29

Lhermitte–Duclos disease is a rare clinical entity characterized by slow deformation of the cerebellar lesion. A 53-year-old woman presented with Lherimitte–Duclos disease manifesting as ataxic gait, occipital headache, and loss of consciousness. Magnetic resonance imaging demonstrated striated and laminar pattern lesions in the right cerebellar hemisphere and vermis. She underwent subtotal removal...

article

Cavernous sinus dural arteriovenous fistula complicated by pontine venous congestion. A case report

Masaki Iwasaki, Kensuke Murakami, Takahiro Tomita, Yoshihiro Numagami, more

Surgical Neurology > 2006 > 65 > 5 > 516-518

Brainstem venous congestion is a rare but serious complication of the CS-dAVF (cavernous sinus dural arteriovenous fistual).A 71-year-old woman presented with right abducens nerve palsy. Brain MRI showed a solitary lesion in the right upper pons. Cerebral angiogram revealed the right CS-dAVF with retrograde venous drainage into the cerebellar cortical veins and the anterior pontomesencephalic vein...

article

Malignant Intracranial Epithelioid Hemangioendothelioma Presumably Originating from the Lung: Case Report

Toshiki Endo, Ching-Chan Su, Yoshihiro Numagami, Reizo Shirane

Journal of Neuro-Oncology > 2004 > 67 > 3 > 337-343

Objective and importance: Epithelioid hemangioendothelioma (EHE) is a rare vascular tumor that presents histological features and biological behavior of low-grade malignancy. The authors report a case of malignant intracranial EHE, in which surgical excisions and additional immuno-chemotherapy were ineffective. Emphasis is placed on the histological features of this rare tumor and its potential for...

article

Aspergillus parasellar abscess mimicking radiation-induced neuropathy - Case report

Toshiki Endo, Yoshihiro Numagami, Hidefumi Jokura, Hidetoshi Ikeda, more

Surgical Neurology > 2001 > 56 > 3 > 195-200

BACKGROUNDTranssphenoidal surgery is a safe procedure for treatment of pituitary adenomas. However, several complications, including post-surgical infection, are known. We describe a case of Aspergillus parasellar abscess that presented with cranial neuropathies following transsphenoidal surgery and radiosurgery. We initially diagnosed the case as radiation-induced neuropathies, which delayed the...

article

Antegrade recanalization of completely embolized internal carotid artery after treatment of a giant intracavernous aneurysm: a case report - long-term follow-up of 58 patients

Yoshihiro Numagami, Masayuki Ezura, Akira Takahashi, Takashi Yoshimoto

Surgical Neurology > 1999 > 52 > 6 > 611-616

BACKGROUNDParent artery occlusion is one of the traditional methods of treatment for unclippable aneurysms. However, parent artery occlusion may not result in permanent exclusion of the aneurysm from the systemic circulation. We present a case of cerebral aneurysm treated by proximal embolization of the parent artery, which recanalized during the follow-up period.CASE DESCRIPTIONA 69-year-old woman...

article

NMDA Receptor-Mediated Calcium Influx in Cerebral Cortical Synaptosomes of the Hypoxic Guinea Pig Fetus

Santina A. Zanelli, Yoshihiro Numagami, Jane E. McGowan, Om P. Mishra, more

Neurochemical Research > 1999 > 24 > 3 > 437-446

Calcium influx via the NMDA receptor has been proposed as a mechanism of hypoxia-induced neuronal injury. The present study tests the hypothesis that the increase of [Ca²⁺]_i observed under hypoxic conditions is the result of an NMDA-mediated Ca²⁺ influx. Changes of [Ca²⁺]_i, measured fluorometrically with Fura-2, were followed after activation of the NMDA receptor with NMDA and glutamate, in the presence...

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Keywords

MAGNETIC RESONANCE IMAGING (2)
ARTERIOVENOUS FISTULA (1)
ASPERGILLUS (1)
BRAIN STEM (1)
CALCIUM (1)
CAVERNOUS SINUS (1)
CENTRAL NERVOUS SYSTEM NEOPLASM (1)
CENTRAL NERVOUS SYSTEM VASCULAR MALFORMATIONS (1)
CEREBRAL ANGIOGRAPHY (1)
CT ANGIOGRAM (1)
DISSECTING ANEURYSM (1)
EPITHELIOID HEMANGIOENDOTHELIOMA (1)
FETUSES (1)
GIANT ANEURYSM (1)
HYPOXIA (1)
IDIOPATHIC HYPEREOSINOPHILIC SYNDROME (1)
LHERMITTE–DUCLOS DISEASE (1)
METASTASIS (1)
NMDA RECEPTOR (1)
PARASELLAR ABSCESS (1)
PARENT ARTERY OCCLUSION (1)
PITUITARY ADENOMA (1)
POSTERIOR CEREBRAL ARTERY (1)
POSTPARTUM PERIOD (1)
RADIATION-INDUCED NEUROPATHY (1)
RECANALIZATION (1)
RECURRENCE (1)
SINUS THROMBOSIS (1)
STEREOTACTIC RADIOSURGERY (1)
SUBARACHNOID HEMORRHAGE (1)
SYNAPTOSOMES (1)
TRANSSPHENOIDAL SURGERY (1)
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Elsevier (5)
Springer (3)

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Search results for: Yoshihiro Numagami

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