Laryngeal schwannomas (neurilemmomas) are extremely rare, and they present the otorhinolaryngologist with diagnostic and management challenges. These lesions usually present as a submucosal mass, and they are always a potential threat to the airway. We describe the case of a 75-year-old woman with a laryngeal schwannoma that arose from the left postcricoid area and covered the piriform sinus and arytenoid cartilage on that side. The tumor was completely excised under direct laryngoscopy with the use of a CO(2) laser, and preservation of the mucosal lining of the larynx was achieved.
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Post-operative vestibular function outcomes evaluated by video Head Impulse Test in patients with non-vestibular schwannoma cerebellopontine angle tumors.
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Department of Otolaryngology-Head & Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-Ku, N15W7, Sapporo 0608638, Hokkaido, Japan.
Objectives: To evaluate post-operative semicircular canal function in patients with non-vestibular schwannoma (VS) cerebellopontine angle (CPA) tumors by video Head Impulse Test (vHIT).
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Relationship between nonserviceable hearing and auditory brainstem response in patients with vestibular schwannoma.
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Department of Otolaryngology, Head and Neck Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
Objective: The interpretation of ABR results in patients with vestibular schwannoma is often unclear. We investigated the correlation between serviceable hearing in patients with vestibular schwannoma (VS) and factors including auditory brainstem response (ABR) at their initial presentation.
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Effectiveness of CI as an alternative to ABI for hearing loss in patients with vestibular schwannomas: A multicenter study in Japan.
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Department of Neurosurgery, Fukushima Medical University School of Medicine, Japan.
Objective: NF2-related schwannomatosis (NF2) is characterized by bilateral vestibular schwannomas (VS), often causing severe damage to the bilateral auditory function. Auditory brainstem implantation (ABI) provides hearing-impaired patients with an opportunity to reacquire auditory sensation through electrical stimulation of auditory neurons in the cochlear nucleus. However, ABI is not covered by public health insurance in Japan, leading to a large difference in financial burden compared to cochlear implantation (CI).
View Article and Find Full Text PDFTransoral Endoscopic Excision of Laryngeal Schwannoma.
J Voice
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Department of Otorhinolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Objective: Schwannomas originating within the larynx are rare and there is no clear consensus on the diagnostic workup or treatment. This study aims to explore the clinical features of laryngeal schwannoma and evaluate the surgical method of transoral endoscopic excision, especially with coblation.
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Narrow-band imaging to enhance intraneural dissection in head and neck schwannoma surgery: a quantitative evaluation.
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Department of Otolaryngology-Head and Neck Surgery, Sapporo Medical University School of Medicine, Minami 1-jo Nishi 16-chome, Chuo-ku, Sapporo, Hokkaido, 060-8543, Japan.
Objective: The objective of this study was to assess the utility of narrow-band imaging (NBI) for improving intraneural dissection during gross total resection of head and neck schwannoma. Specifically, we aimed to quantitatively evaluate whether NBI can enhance the identification of pseudocapsule and true capsule within the tumor.
Methods: Nine schwannoma surgery cases conducted between February 2018 and October 2022 were retrospectively analyzed.
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