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Volume 46, Issue 4
Displaying 1-10 of 10 articles from this issue
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Takashi NAKAGAWA, Yoshihiko KUMAMOTO, Atsushi SHINOKUMA, Naoya HIRAKAW ...2000 Volume 46 Issue 4 Pages 269-274
Published: July 20, 2000
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSAdenocarcinoma arising from the temporal bone is a rare neoplasm. The symptoms are related to the tumor extension toward the surrounding tissues and a reactive inflammation in the middle ear cavity. We here report a female patient of fifth decades with primary adenocarcinoma of the middle ear. It was not pathohistologically diagnosed up to third operation after over 10 year-follow up from her first ear symptoms. Tumor finally extended into the middle cranial fossa, and a partial temporal bone resection was performed as a curative therapy. Pathological characteristics of adenocarcinoma was observed only at the lesion attached to dura mater of the middle cranial fossa.View full abstractDownload PDF (16177K) -
Akihide IMAMURA, Kimio SHIRAISHI, Tetsuo MORIZONO2000 Volume 46 Issue 4 Pages 275-284
Published: July 20, 2000
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSWord recognition in noisy situations using linear and non-linear hearing aids was evaluated in subjects with mild and moderate sensorineural hearing loss. First of all, the experimental conditions were established in free-field for fifteen normal hearing listeners. The investigated conditions were composed of the following items; the sound pressure level of signal and noise, the sources of noise (white noise and weighted noise), and the azimuth of loudspeakers (front, right and rear sides) in a free-field. As a result, the signal noise ratios were +10dB and +5dB, the weighted noise was suitable, and the front and right sides were appropriate for the position of the loud speakers. Next, ten mild and moderate sensorineural hearing loss patients with one linear hearing aid and two non-linear hearing aids underwent a word recognition evaluation under these same conditions. The word recognition score with non-linear hearing aids tended to better than with linear ones. Especially, the non-linear hearing aid using a full dynamic compression function demonstrated the best results for patients in which the dynamic range was narrow.View full abstractDownload PDF (21048K) -
Ayako KOUCHI, Akira Kusumi, Masaharu URA2000 Volume 46 Issue 4 Pages 285-289
Published: July 20, 2000
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSIn so-called minimally invasive treatment myringoplasty is considered to be a good surgical modality. The standard procedure is to close a perforation to induce epithelialization. So far, we applied artificial dermis (TERUDERMIS®) to a mucous defect for the nasal septum or palate and confirmed that satisfactory epithelialization could thus be induced. When utilizing this technique, we attempted to perform myringoplasty using an artificial dermis. As a result perforation could be adequately closed using a relatively simple procedure, and the treated regions also appeared exhibited a high degree of resistance to infection. These results indicate this procedure to be a very useful method when performing minimally invasive treatment.View full abstractDownload PDF (9965K) -
Atsuhiko UNO, Kazuya HASHIMOTO, Kazuhiro TERAMOTO, Kazuhiro MORIWAKI, ...2000 Volume 46 Issue 4 Pages 290-294
Published: July 20, 2000
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSWe report a case of either brainstem encephalitis or cerebellitis, featuring ocular flutter and truncal ataxia. A 33-year-old man visited our hospital complaining of nausea and vomiting whenever he changed his head position. No positional or positioning nystagmus was observed. Over the next few weeks, ocular flutter which was sometimes accompanied by shivering movements in his head and symptoms of truncal ataxia rapidly progressed. The lymphocyte in the CSF increased, but no lesion was found on brain MRI. After steroid pulse, anti-virus and antibiotic therapies were administered, these symptoms all resolved without sequelae within 3 months. All the observed abnormalities in eye movements in this case were considered to be related to the saccadic eye movements. The neurophysiological basis of saccades suggested that either the pontine pause neuron itself or the cerebellar fastigial nuclei that affect the pause neuron function might have been responsible for the ocular flutter and other related abnormalities in this case.View full abstractDownload PDF (9108K) -
A report of a caseKazuki KIDERA, Seiji TAKAGI, Junji MIYAZAKI, Toshihiko SUGIMOTO, Kuniy ...2000 Volume 46 Issue 4 Pages 295-298
Published: July 20, 2000
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSA case of lingual ectopic thyroid is reported. The patient was a 63-year-old man with euthyroid symptoms who complained of an abnormal sensation in his throat. An 123I scintigram and CT played an important role in making a diagnosis. After conservative treatment with levothyroxine sodium, the symptoms subsided and the size of the tumor decreased. No unplanned surgical treatment should thus be performed until the functioning thyroid is identified. Although the malignant changes in an ectopic thyroid are considered to be rare, nevertheless a careful long-term follow-up is called for.View full abstractDownload PDF (10058K) -
Emiko CHIKUMOTO, Shin KARIYA, Katsuya AOJI2000 Volume 46 Issue 4 Pages 299-302
Published: July 20, 2000
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSWe report a case of carcinoid tumor of the hypopharynx of a 65-year-old man. The patient underwent a gastrofiberscope examination and a small mass was found to be located in the right piriform sinus. A biopsy was performed and a carcinoid tumor was thus diagnosed. No metastatic lesions were observed and thus the tumor was removed by laryngomicrosurgery. No sign of recurrence has been observed for over ten months after surgery. Carcinoid tumors are rare in the otorhinolaryngeal area. They have previously been reported in the larynx and the middle ear. However, as far as we could determine, no reports of a hypopharyngeal carcinoid tumor have yet been made.View full abstractDownload PDF (8381K) -
Hideaki KATORI, Koutarou YAMASHITA, Masayuki SAWASHIMA, Mamoru TSUKUDA2000 Volume 46 Issue 4 Pages 303-307
Published: July 20, 2000
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSWe encountered a case of laryngeal amyloidosis. Laryngeal amyloidosis is a rare disorder and 98 cases have been reported in the Japanese literatures. Since laryngeal amyloidosis is a localized tumor, the main treatment is a surgical resection. Laryngeal amyloidosis over a small area can be treated by laryngomicrosurgery with either CO2 or a YAG -laser. However, if the larynx is widely affected by amyloidosis, then the patients should be treated by laryngofissure with tracheostomy.View full abstractDownload PDF (11177K) -
A case reportAkio SHINO, Toshio YOSHIHARA, Tetsuo ISHII2000 Volume 46 Issue 4 Pages 308-311
Published: July 20, 2000
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSSchwannoma of the larynx is a relatively rare disease. The case of a 39-year-old man with laryngeal schwannoma is presented. The patient complained of a foreign body sensation in the larynx and pharynx. Flexible laryngoscopy showed a smooth mass to be located in the left arytenoid and aryepiglottic fold. A CT scan examination demonstrated a mass measuring 1.5 × 2.5cm in size situated in the left arytenoid near the pyriform sinus. Laryngomicrosurgery was performed under general anesthesia and the tumor was removed using a trans-oral approach. The histological diagnosis revealed a schwannoma which was diagnosed to be Antoni type A and B. Based on our review of the literature, so far only 58 such tumors have been reported in Japan.View full abstractDownload PDF (10476K) -
Case report and therapeutic approaches following parathyroidectomySeiji TAKAGI, Kumiko SUZUKI, Motohiro SAWATSUBASHI, Junji MIYAZAKI, Hi ...2000 Volume 46 Issue 4 Pages 312-317
Published: July 20, 2000
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSA rare case of parathyroid adenoma associated with primary hyperparathyroidism and marked hungry bone syndrome was identified in a 19-year-old male presenting with a brown tumor. Both the serum calcium and the serum parathyroid hormone levels were elevated and a radiological examination demonstrated a lower right cervical mass, consistent with a parathyroid tumor. The removal of the tumor resulted in severe hungry bone syndrome, which required the administration of large amount of calcium and vitamin D for prolonged periods. This phenomenon is due to an increased bone metabolism, and it is an uncommon finding following a parathyroidectomy. Both an early diagnosis and timely treatment can reduce the morbidity.View full abstractDownload PDF (13657K) -
Tetsuya NODA2000 Volume 46 Issue 4 Pages 318-326
Published: July 20, 2000
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSAlthough autonomic reactions by vestibular stimulation are supposed to be induced by the vestibulo-autonomic reflex, this mechanism has yet to be fully elucidated. Therefore, I thought hard about this from imbalance and vomiting. The relationship between the vestibular organs and autonomic nervous system was thus examined. There seemed to be input not only from vestibular organs, eyes and proprioceptor but also from internal organs to the central nervous system, when acceleration was induced. If the system controlled the input, then no symptoms might occur. If the somatic nervous system didn't control it, then an equilibrium disturbance and the sensation of dizziness might exist. On the other hand, when the autonomic nervous system lost control of it, nausea, vomiting and so on might occur. I considered that autonomic reactions by vestibular stimulation, which was based on imbalance, were influenced by the input from internal organs, and that motion stickness also had the same mechanism.View full abstractDownload PDF (20427K)
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