Norimasa Morita

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A 78-year-old woman is described who presented with a diaphragmatic hernia through the foramen of Morgagni. A definitive diagnosis was confirmed by a sagittal view on magnetic resonance imaging prior to surgery. The hernia was repaired laparoscopically under an abdominal wall lifting technique without pneumoperitoneum, and her symptoms completely resolved(More)
BACKGROUND We investigated the application of boron neutron capture therapy (BNCT) to suitable cancers other than glioblastoma and melanoma. Head and neck malignancies were consequently selected as adaptable cancers. We reported the clinical results of our first case treated and discussed several advantages to the application of BNCT to head and neck(More)
OBJECTIVES The purpose of this study was to determine the normal volume ranges of cochlear duct, saccule, and utricle, and to assess endolymphatic hydrops in Ménière disease. STUDY DESIGN Retrospective temporal bone study. METHODS Three-dimensional (3-D) images of membranous labyrinth were reconstructed from 31 normal temporal bones, six temporal bones(More)
OBJECTIVE To investigate the vestibular system changes in sudden deafness with vertigo (SDwV) and sudden deafness without vertigo (SDwoV) and the cause of persistent canal paresis (CP) in SDwV patients. STUDY DESIGN Retrospective study. MATERIALS AND METHODS Four temporal bones from the affected ear in 4 patients with unilateral sudden deafness (SD), 2(More)
CONCLUSION Middle and inner ear interactions in otitis media can lead to cochlear pathology. More severe pathological changes observed in the basal turn of the cochlea are consistent with prevalence of sensorineural hearing loss at higher frequencies in patients with otitis media. METHODS Of 614 temporal bones with otitis media, 47 with chronic and 35(More)
OBJECTIVES To assess the clinicopathologic correlations of otologic complaints in patients with acute lymphocytic leukemia. DESIGN Otologic complaints and histologic findings were evaluated in 25 temporal bones of 13 acute lymphocytic leukemia patients. RESULTS Nine patients had a history of otologic complaints, including hearing loss, otalgia,(More)
OBJECTIVES To compare the incidence of deposits in the semicircular canals between the temporal bones with Ménière's disease and normal controls and to investigate the relationship between the incidence of deposits and the symptoms of positional vertigo, often seen in patients with Ménière's disease. STUDY DESIGN Retrospective histopathologic human(More)
OBJECTIVES To disclose the histopathologic findings of the thickness of the round window membrane and the presence of false round window membrane in Ménière's disease. METHODS Twelve temporal bones from 6 patients with bilateral Ménière's disease, 44 temporal bones from 23 patients with unilateral Ménière's disease, and 102 age-matched normal temporal(More)
The information on incidence of the facial nerve canal dehiscence in chronic otitis media is important for surgeons. The purpose of this study is to disclose the histopathologic findings of facial nerve canal dehiscence in human temporal bones with chronic otitis media. We divided the human temporal bones into two groups (age 4 years, and under 4 years of(More)
BACKGROUND Posterior semicircular canal dehiscence has been shown to cause ear symptoms. OBJECTIVE To evaluate the incidence of dehiscence of the posterior semicircular canal, thin bone overlying the posterior semicircular canal, and the normal development of the distance between the posterior semicircular canal and posterior cranial fossa. METHODS The(More)