Nippon Jibiinkoka Gakkai Kaiho
Online ISSN : 1883-0854
Print ISSN : 0030-6622
ISSN-L : 0030-6622
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Volume 117, Issue 9
Displaying 1-16 of 16 articles from this issue
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Review article
Original article
  • External Auditory Canal Cholesteatoma with Chronic Renal Failure or Hemodialysis
    Ken Hashimoto, Kenichi Watanabe, Mika Adachi, Tetsuaki Kawase, Toshimi ...
    2014 Volume 117 Issue 9 Pages 1179-1187
    Published: September 20, 2014
    Released on J-STAGE: October 07, 2014
    DOIhttps://doi.org/10.3950/jibiinkoka.117.1179
    JOURNAL FREE ACCESS
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    Background: External auditory canal cholesteatoma (EACC) is a rare otologic disease, characterized by focal osteonecrosis, sequestration and overlying epithelial loss of the bony external auditory canal (EAC). The etiology and pathogenesis of EACC remain controversial. There are only 2 reports on the association between EACC and chronic renal failure (CRF)/hemodialysis (HD).
    Method & Result: ①This study reviewed seven EACC cases with CRF. The mean age was 68.4 years (range: 56 -81 years), and the male-female ratio was 5: 2. There were 12 ears with EACC (5 cases were bilateral and 2 cases were unilateral). The EACCs were found in the inferior or posterior inferior part of the EAC in 11 ears. The number of the ears in stage III or IV was 6. Five cases were on HD. ②Seventy-six cases with CRF on HD were examined for EACC, and 2 out of those 70 cases were diagnosed as having EACC. ③A comparative study of the 7 EACC cases on HD and 68 non-EACC cases on HD revealed no significant differences in the sex, age, period on CRF/HD, complications (diabetes mellitus or skin disease), smoking, ear cleaning and the use of an earphone or a hearing aid.
    Conclusion & Discussion: Six out of all 9 EACC cases with CRF developed bilaterally, and in the inferior or posterior inferior part of the EAC, which implies a common pathological condition that contributes to the development of EACC. The mean age of 9 patients with EACC was relatively older (66.7 years), therefore age-related changes in the EAC are suspected in the cases with CRF on HD. The patients with CRF on HD have a high incidence of EACC. This strongly suggests the association between EACC and CRF/HD, but the mechanism of this pathogenesis has not been revealed.
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  • A Retrospective Study on Parotid Carcinoma
    Teppei Kaminota, Toru Ugumori, Yuichi Tomidokoro, Hiroyuki Yamada, Hir ...
    2014 Volume 117 Issue 9 Pages 1188-1193
    Published: September 20, 2014
    Released on J-STAGE: October 07, 2014
    DOIhttps://doi.org/10.3950/jibiinkoka.117.1188
    JOURNAL FREE ACCESS
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    We retrospectively analyzed the clinicopathological factors affecting survival in patients with previously untreated parotid carcinoma. The subjects were 50 patients treated in our department from 1987 through 2011. The T stage was T1, T2, T3, and T4 in 4 patients, 11 patients, 9 patients, and 26 patients, respectively. The N stage was N0, N1, and N2 in 36 patients, 3 patients, and 11 patients, respectively. The clinical stage was I, II, III, and IV in 4 patients, 10 patients, 7 patients, and 29 patients, respectively. Histopathologically, eleven tumor types were observed; mucoepidermoid carcinoma was the most common. The overall 5-year survival rate was 72.1%, and the disease-specific 5-year survival rate was 74.0% in 42 patients who received radical surgery. Twelve patients relapsed; the site of relapse was the primary site alone in 2, in the neck alone in 3 patients, in the neck with distant metastases in 2 patients, and in distant metastatic site(s) alone in 5 patients. Univariate analysis showed that significant prognostic factors for overall survival rates were the T stage, cervical lymph node metastasis, clinical stage, grade, facial nerve palsy, and tumor size. We concluded that patients at high risk of recurrence should receive adjuvant therapy to improve the therapeutic outcomes.
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  • A Case of Idiopathic Neck Bleeding from a Parathyroid Cyst
    Hirofumi Shibata, Bunya Kuze, Hisamitsu Hayashi, Takesumi Nishihori, M ...
    2014 Volume 117 Issue 9 Pages 1194-1199
    Published: September 20, 2014
    Released on J-STAGE: October 07, 2014
    DOIhttps://doi.org/10.3950/jibiinkoka.117.1194
    JOURNAL FREE ACCESS
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    Bleeding from parathyroid cysts is rare. The retropharyngeal space has a very soft structure and if bleeding spreads to this space, airway obstruction can easily occur. We report on a 50-year-old female case with idiopathic neck bleeding from a left parathyroid cyst without any episode of injury. The patient complained of neck swelling after exercise and went to a nearby hospital. At the hospital, the doctor thought this swelling was caused by retropharyngeal bleeding from a tumor behind the left thyroid gland. Embolization of the left thyroid artery was performed. However, the next day, airway obstruction was occurred and she was brought to our hospital. An emergency operation was performed to open the left neck swelling region. The operation findings and pathological examination showed that the bleeding was caused by a parathyroid cyst and airway obstruction had occurred because of retropharyngeal edema. In this case, the bleeding may have been caused by torsion of the neck when the patient exercised. The retropharyngeal edema probably resulted from the delay of delivery of the lymphatic and venous return and the arterial embolization. 1 year after the operation, the patient is very well and there has been no recurrence.
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  • The Age at Which the Grade of Special Child Dependent's Allowance Act Can Be Judged in the Case of Deaf Children
    Yuko Kataoka, Kunihiro Fukushima, Akiko Sugaya, Yukihide Maeda, Kazuno ...
    2014 Volume 117 Issue 9 Pages 1200-1204
    Published: September 20, 2014
    Released on J-STAGE: October 07, 2014
    DOIhttps://doi.org/10.3950/jibiinkoka.117.1200
    JOURNAL FREE ACCESS
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    The spread of neonatal hearing screening has made the identification of hearing loss in early childhood possible, and most of the children with hearing loss are diagnosed and provided with early intervention within several months after their birth. However, they have to wait to receive the Special Child Dependent's Allowance until their hearing levels are evaluated with audiometers. Under the Special Child Dependent's Allowance Act now in force, a delay of several years occurs for those children before they can receive the allowance after diagnosis. We retrospectively reviewed hearing test results of children who had not reacted at 90dBnHL bilaterally in ABR within 12 months after birth, and examined when those results were certain enough to determine their allowance eligibility. We found that the eligibility in children with hearing loss alone could be determined at 1 year of age; as for children who had other disorders, since it was mostly difficult to test them with an audiometer, the diagnosis of hearing loss must always be made carefully but it was also possible to determine the eligibility for the allowance at 1 year of age.
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Final Lecture
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