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Volume 48, Issue 1
Displaying 1-8 of 8 articles from this issue
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Masaharu URA, Tatsuhito OWA, Dongxiao NONG, Hiroyuki MAEDA, Yutaka NOD ...2002 Volume 48 Issue 1 Pages 1-5
Published: January 20, 2002
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSThree types of cochlear electrical stimulation tests in 22 caces and intraoperative measurements for impedance across the cochlear bony wall in 7 cases were carried out. The following results were obtained. 1) The round windows stimulation test (RWST), which was performed with a silver-ball electrode placed on the round window, elicited better sound sensations with wider dynamic ranges that the promontory stimulation test (PST), with transmyringeal needle electrodes, or the external meatus stimulation test (EMST). 2) The intraoperative measurement of interelectrode impedance across the cochlear bony wall revealed the lowest values for silver-balls on the promontory and remarkably high values for needle electrodes. A high degree of impedance was observed when the electrode penetrated the submucosal bony wall and this was thought to be one of the reasons for the increased thresholds, narrow dynamic ranges and lack of reproducibility in PST. RWST was thus found to be a suitable method for evaluating wide and reproducible dynamic ranges.View full abstractDownload PDF (9120K) -
Tomoyuki NAGAI2002 Volume 48 Issue 1 Pages 6-9
Published: January 20, 2002
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSTo investigate the morphological change in the encapuslated nerve corpuscles in middle ear diseases, a tympanic membrane taken from a patient with secretory otitis media was studied under transmission electron microscope. In addition to the presence of normal nerve endings, some nerve endings contained diminished cytoplasmic organelles while some Schwann cell processes were filled with dense granules. These findings indicated that a correlation existed between secretory otitis media and the degeneration of encapsulated nerve corpuscles in the tympanic membrane. The degeneration of sensory nerve endings in the tympanic membrane was also suggested to result in the development of tubal dysfunction in chronic middle ear diseases.View full abstractDownload PDF (7373K) -
The advantage of MR imagingShigetaka MORIAI, Reiko KARASAKI, Takeshi KANAYA, Yasuaki HARABUCHI2002 Volume 48 Issue 1 Pages 10-14
Published: January 20, 2002
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSWe report the case of a 28-year-old male with localized amyloidosis of the pharynx and larynx. He was referred to us because of a two-year history of hoarseness. We found yellow or red masses in his left vocal cord, left epipharynx and mesopharynx. Biopsy findings of these masses were consistent with those of amyloidosis. Further examinations showed no systemic amyloidosis. Before performing laryngomicrosurgery, we studied the findings of radiological examinations, CT, MRI and Ga -scntigraphy. On the T2-weighted MRI findings, a distinctive loss of signal intensity was seen in accordance with the masses with an overlying hyperintense rim, which represented the laryngeal mucosa. We therefore consider this radiological specific aspect on MRI findings to be useful not only for diagnosing this disease but also for conducting a follow-up of laryngeal amyloidosis, because this disease may recur up to several years after the initial treatment.View full abstractDownload PDF (12188K) -
Tetsuo ITOKAZU, Katsunori TANAKA, Chiaki SHUKUMINE, Kazunori TAMAKI2002 Volume 48 Issue 1 Pages 15-18
Published: January 20, 2002
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSTwo cases of spontaneous mediastinal emphysema with sore throat symptoms are herein reported. In the first case, a 16-year-old male complained of a sore throat after excessive vocal exercise related to playing volley ball. A chest X-ray revealed mediastinal emphysema. In the second case, a 36-year -old man complained of a sore throat and swallowing pain. A chest X-ray and CT scan revealed mediastinal emphysema and subcutaneous emphysema. Esophagoscopy was performed, but no injury or foreign body was found in the esophagus. Both patients were treated conservatively. Bed rest and antibiotics to prevent infection resulted in a subsidence of the emphysema within 3 to 4 days.View full abstractDownload PDF (9728K) -
Shunichiro TANAKA, Shoko INAKI, Yoshihiko KUMAMOTO, Sohtaro KOMIYAMA2002 Volume 48 Issue 1 Pages 19-23
Published: January 20, 2002
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSWe herein report a rare case of ganglioneuroma occurring in the head and neck region. The patient was a 5-year-old girl whose chief complaiant was a mass in the left upper neck. The mass was surgically removed. The histological diagnosis indicated ganglioneuroma. Ipsilateral Homer sign was observed, postoperatively. The tumor was thought to originate in the sympathetic ganglion.View full abstractDownload PDF (10758K) -
Hideki CHIJIWA, Akiteru MAEDA, Shunichi YONEKAWA, Tadasi NAKASIMA, Tak ...2002 Volume 48 Issue 1 Pages 24-27
Published: January 20, 2002
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSAggressive fibromatosis is a rare tumor, especially in the head and neck. Although it is classified as pathologically benign, this tumor is thought to be clinically malignant, because of its locally expansive growth style and large degree of bony destruction. We herein describe a case of aggressive fibromatosis which mainly involved the right paranasal sinuses. A 44-year-old female was hospitalized with the chief complaint of swelling in the right nasal dorsum. At biopsy identified it to be aggressive fibromatosis and the tumor was operated on according to the method of Denker's partial maxillectomy. However, recurrence occurred at the suborbital region and a reexcision was thus performed. The postoperative course after the second surgery was uneventful and there has been no re currence for more than 3 months after surgery.View full abstractDownload PDF (8191K) -
Toshihiko Kikuchi, Jun TAKANO, Akiko BABA, Naotaro AKIYAMA, Toshimitsu ...2002 Volume 48 Issue 1 Pages 28-33
Published: January 20, 2002
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSSix cases of mycosis in the maxillary sinus who were treated by endoscopic sinus surgery (ESS) are herein reported. All six cases were successfully treated with either a middle antrostomy (4/6) or a combination of middle and inferior antrostomies (2/6). The postoperative courses of these cases were uneventful, and no recurrences of the fungal infections were seen. These results suggest the efficacy of ESS in the treatment of cases with paranasal sinus mycosis.View full abstractDownload PDF (14584K) -
GO TANAKA, Shoichiro YAMADA, Motohiro SAWATSUBASHI, Junji MIYAZAKI, Ku ...2002 Volume 48 Issue 1 Pages 34-37
Published: January 20, 2002
Released on J-STAGE: May 10, 2013
JOURNAL FREE ACCESSForty patients with squamous cell carcinoma in the maxillary sinus were investigated between 1989 and 1999. They consisted of 28 males and 12 females. Their ages ranged from 18 to 84 years (mean 62 years). According to the 1987 UICC TNM classification system, 3 patients were classified as stage II, 3 were stage III and 34 were stage N. The overall three-year and five-year survival rates were 52% and 44%, respectivery. Local recurrence was observed in 11 stage N cases and 10 of them were not controlled. For further improving the prognosis of such patients, new techniques such as skull base surgery, super selective intraarterial chemotherapy, and concurrent chemo-radiation should be included in the treatment regimen.View full abstractDownload PDF (6545K)
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