Kouichirou Okamoto
Niigata, Japan
Last Updated: 09/26/2026
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Found 71 publications
Reversible cerebral vasoconstriction syndrome with concomitant recurrent subarachnoid hemorrhage and coronary vasospastic angina: A manifestation of systemic vasoconstriction syndrome.
Journal: Surgical neurology international
Published: February 15, 2026
Early glucocorticoid therapy for brainstem edema associated with acute inflammatory Teflon granuloma after microvascular decompression for trigeminal neuralgia: illustrative case.
Journal: Journal of neurosurgery. Case lessons
Published: December 25, 2025
Molecularly distinct collision tumor consisting of meningothelial meningioma and glioblastoma, IDH-wildtype: illustrative case.
Journal: Journal of neurosurgery. Case lessons
Published: December 02, 2025
Long-Term Clinical Landscapes of Spinal Hypertrophic Pachymeningitis With Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis.
Journal: Neurology
Published: March 19, 2025
Contrecoup raccoon sign following minor posterior head injury without visible injury: Diagnostic challenge in an asymptomatic older adult man.
Journal: Surgical neurology international
Published: March 04, 2025
Early cerebral hypoperfusion with small artery vasospasm and delayed development of cortical T2* hypointense lesions in contrast-induced encephalopathy.
Journal: Surgical neurology international
Published: February 27, 2025
Sequential and coexisting bilateral suboccipital cavernous sinus arteriovenous fistulas successfully treated with unilateral transvenous coil embolization: illustrative case.
Journal: Journal of neurosurgery. Case lessons
Published: February 27, 2025
Rapidly progressive scalp and lung metastases with fatal pneumothorax in glioblastoma, IDH-wildtype, with MET and CDK6 amplifications: a case report of clinical course and postmortem autopsy, including genetic analysis.
Journal: Brain tumor pathology
Published: December 11, 2024
Diagnosis of Leptomeningeal Disease in Diffuse Midline Gliomas by Detection of H3F3A K27M Mutation in Circulating Tumor DNA of Cerebrospinal Fluid.
Journal: Pediatric blood & cancer
Published: October 04, 2024
Case report: Progressive multifocal leukoencephalopathy co-occurring with neurosarcoidosis: early brain biopsy and appropriate therapy for PML resulted in a favorable prognosis.
Journal: Frontiers in immunology
Published: June 12, 2024
Indications for a brain biopsy in neurological diseases of unknown etiology: The role of magnetic resonance imaging findings and liquid biopsy in yielding definitive pathological diagnoses.
Journal: Journal of the neurological sciences
Published: May 24, 2024
Last Updated: 09/26/2026