Publications by authors named "T Morisako"

Article Synopsis
  • A case of arterial cerebral air embolism (aCAE) in an 84-year-old male is reported, likely caused by aspiration pneumonia, which led to sudden loss of consciousness.
  • CT scans showed air presence in specific brain areas and indicated right upper lung aspiration pneumonia with cavity formation.
  • The condition was treated with an antiepileptic, and since there was no prior medical intervention, it was classified as noniatrogenic aCAE, highlighting the rarity of such cases compared to more common iatrogenic ones.
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Purpose: Vertebral endplate lesions (EPLs) caused by severe disk degeneration are associated with low back pain. However, its pathophysiology remains unclear. In this study, we aimed to develop a vertebral EPL rat model mimicking severe intervertebral disk (IVD) degeneration by injecting monosodium iodoacetate (MIA) into the IVDs and evaluating it by assessing pain-related behavior, micro-computed tomography (CT) findings, and histological changes.

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We compare two cases of primary spinal atypical teratoid/rhabdoid tumor (AT/RT), which rarely occurs in adults marked by inactivation, and inactivation for pediatric cases. AT/RT represents a highly malignant neoplasm comprising poorly differentiated constituents and rhabdoid cells, with SMARCB1(INI1) or infrequently SMARCA4 (BRG1) inactivation. These tumors are predominantly found in children but are rare in adults.

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Background: Nontraumatic cerebrospinal fluid (CSF) rhinorrhea associated with aqueductal stenosis is rare. The resulting CSF leakage may cause bacterial meningitis, and appropriately timed surgical treatment should be considered.

Case Description: A 28-year-old woman with obstructive hydrocephalus secondary to aqueductal stenosis presented with intermittent nasal discharge.

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Purpose: This study aims to characterize tight filum terminale (TFT) in motor evoked potential (MEP) testing by comparing TFT patients with both tethered cord syndrome (TCS) patients and healthy subjects.

Methods: Fifty TFT patients, 18 TCS patients, and 35 healthy volunteers participated in this study. We recorded MEPs following transcranial magnetic stimulation from the bilateral abductor hallucis muscles as well as compound muscle action potentials and F-waves evoked by electrical stimulation of the tibial nerve from the bilateral abductor pollicis brevis muscles.

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