The acoustic neuroma was discussed in the symptomatological, diagnostic and therapeutic aspects on the basis of own experience in fifty cases. This tumor ranks fourth (12%) among all intracranial tumors of own series.
The accurate analysis of the clinical signs and symptoms is most essential in its diagnosis. Considerable increase of total protein in the cerebro-spinal fluid is present in the majority of the cases. Fractional pneumoencephalography is of the highest value in establishing diagnosis, outlining the structures in the posterior fossa. As treatment, its total removal is ideal, although the radical removal of the intrameatal portion of the tumor is hardly compatible with preserving the facial nerve. The post-operative facial nerve paralysis is one of the most unpleasant complications and should be avoided, if possible. In some cases it may be preferable to maintain the facial nerve rather than sacrificing it completely for radical removal. Mechanical damage to the brain stem during the procedure must be avoided as much as possible. Resection of the lateral 1/3 of the cerebellar hemisphere gives less damage to the brain stem than forcible retraction of the cerebellum throughout the procedure. En-bloc removal is successful only in exceptional cases. Intracapsular curetting to reduce the tumor volume preceding the separation from the cranial nerves and brain stem is thus far more favorable in preserving these important structures. Sitting position is thought to outstand prone posture in obtaining better exposure and reducing blood loss. Operative mortality is 2/33 in sitting position which has been employed since 1959, and none for the last three years. The follow-up study reveals that about 80 % of survival cases are leading useful life, while other 20% have considerable handicaps in daily life such as advanced visual impairment, disturbed equillibrium or occasional headaches.
It should be emphasized that the acoustic neuroma is most benign of the intracranial tumors in every aspect and may be easiest to diagnose, if studied accurately, and should therefore never be overlooked in any case.

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Our. new rotary apparatus devised from the positional-table system (Lagetisch n/Grahe, 1925) is driven electrically and is operated on posture change combined with rotation. The apparatus is capable of accelerating or decelerating at fixed rate which is adjustable from 0.15° to 13° per second per second, and of revolving in either direction at any constant angular velocity up to 180° per second.
When the subject lies on supine position, the labyrinth is about 60 cm apart from the pivot and influenced under centrifugal force. We calculated its resultant acceleration of centrifugal force and angular acceleration, and made sure the direction of the forces during rotation for the purpose of application in practical use. We recorded the eye-nystagmus and the microvibration of body surface which are one of vestibular responses by use of a retinograph (5 channels), and made plans for the studies of otolith- and tonic neck-reflexes, positional nystagmus, and so on.
The principal points may be summed up as follows
(1) This apparatus is not in large scale as the lift or the rocket for the vestibular reserches.
(2) The subject's labyrinth is stimulated exactly by angular acceleration and centrifugal force.
(3) The microvibration of body surface changes as soon as rotation is put in motion at 0.3° or 0.5° per second per second.
(4) Even at the maximum velocity of 30° or 60° per second, the subject don't feel discomfort.
(5) The data may be examined objectively and synthetically.

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Recently, methods of hearing testing in children have been advanced, but these objective methods are not so satisfactory for young children under 3 years old.
We studied the changes in microvibration of the thenar eminence of young children incident to auditory stimuli. In our records, a special pick-up was always used which was connected with an amplifier (Nihon Koden Co. Tokyo). The recording was done through the pick-up which was applied to the thenar eminence of the subjects. In analyzing the records, we divided the vibrations into three categories θ(4-8 cps), α (8-13cps), and β (13-20cps). We simulta- neously recorded the electroencepalogram bilaterally from the parietal and frontal lobes in order to note any coincident changes in it.
The subjects consisted of 11 normal children and 20 children with diminished hearing under 6 years of age. All were sedated with Nembutal. The stimulating sounds were of five kinds 1000 cps pure tone, white noise and sounds of toys (tambourine, castanets and triangle), which were recorded on tape at the same intensity. They were given to one ear through a receiver at 70, 90 and 110 db (sensation level) one by one for 3 seconds with an interval of 3 minutes.
We found that microvibration could be changed with auditory stimuli during sleep as well as in the relaxed awake state. The chief changes were as follows
1) Rapid acceleration during stimulation in some cases and after stimulation in other cases.
2) In analysis, two types of responses were found One was the acceleration of a and β wave components for few seconds after stimulation. The other was the inhibition of them, especially β, continuing for several seconds after stimulation. The latter was more common than the former. Changes of θ wave component was very uncommon. The electroencephalogram exhibited K-complexs, spindle waves, suppression, etc., as many authors have previously reported.
The stimulation at 110 db produced changes which were very clear in both microvibrations and the electroencephalogram. They seemed to be the result of a startle response, but we thought they were different from it. The weaker the stimuli, the fainter the changes in comparison to the electroencephalogram. However, we found that there was a correlation between the response of the electroencephalograph and the microvibration recording.
As the stimulating sound became weaker than 70db, changes in microvibration were very faint. However, with more sensitive methods of recording, we could have picked up such faint changes.
Overall, we found that the microvibration of the thenar eminence of young children could be changed by auditory stimuli during sleep.

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Clinical application of the high and low voltage radiographic examinations in lateral position was made on the children with adenoid.
By this method the accurate degree of hypertrophy was easily obtained without any dis- comfort to patients.
Since the high voltage X-ray film shows a faint shadow of the mandible, it reveals clearer findings of the adenoid than the low voltage X-ray film.
In 100 cases, the results obtained were as follows: small-sized 21%, medium-sized 40%, fairly large-sized 33%, and excessively large-sized 6%.
It may be concluded that the X-ray diagnosis is the most reliable method to examine the adenoids.

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A case of Behget's disease was observed in a fifty-six-years-old female. In this case the initial symptom was aphthous lesions in the oral cavity, which was associated with skin and genital lesions later. No ocular symptom was observed at all.
Favorable therapeutic results was obtained by treatments mainly with steroid hormon and there was no recurrence for 20 months after the clinical healing. The results of some clinical examinations i. e. sedimentation rate of erythrocytes, analysis of serum proteins, blood and urine examinations were discussed, especially about the relationship between the results of these examinations and clinical findings. Discussing this case and referring several literatures, it was emphasized that the otolaryngologists should always keep in mind that aphthous stomatitis, which was often observed by them, might be the initial symptom of Behcet's disease.
This thought is helpful for early diagnosis of the Behget's disease and therefore contributes to improve the miserable prognosis of this disease.

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The repair of the secondary deformities of the nasal ala caused by the unilateral cleft-lip contains many problems. The method of cleft-lip nose plasty reported by the author is as follows
1. The alar cartilage should be freed from both surfaces and repositioned symmetrically. In most of the Japanese with short and round nostrils, however, the whole cartilage might be removed with good results.
By my experiences, the sag formation of nasal ala seemed to be caused by the shearing forces which effect on the carilage and the vestivular skin in opposite directions.
2. To repair the wide nostril floor, the skin is excised in a wedge form or by the modified Millard's method.
A gap between the new nostril floor and the underdeveloped maxilla must be packed with autogenious tissues such as septal cartilage, vomer or some other soft tissues.
3. To repair the lateralized alar attachment, the connective tissu e beneath the alar lateral crus should be sutured with the periostium at the piriformis margin.
4. Dorsal nasal hump, named by J. T. Farrior, must b e removed to get the normal inside curvature of vestivulum.
5. The deviation of the septum and the anterior nasal spin must carefully be corrected to normalize the deviated ponticulus and to heal nasal obstructions

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Isodine Gargle is the new one that contain the non-irritating and germicidal polyvinylpyrrolidone iodine and the ethanol. It has the antiseptic as well as the aseptic power. Hemolytic streptococci, botryoidimicrococci and pneumococci become to be extinct by its effect within one minute and the other bacilli within 15 minutes at least. Isodine Gargle is one of the most useful gargle and the prophylactic as the therapeutics to the pharyngitis.

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The author reported here both a case of acute tonsillar abscess and a case of peritonsillar abscess. In the former case, it was observed that acute tonsillar abscess affected the peritonsillar tissue and formed peritonsillar abscess. An opinion on this process had already been presented by Sasaki in 1949. Seemingly this case supports his maintenance.
The latter was also peritonsillar abscess and the lesion was extended laterally into the alveolar region. In this case, bilateral conchotomy is interpreted as being followed by angina which caused abscess formation primary in the peritonsillar tissue. The author discussed the difference between these two processes.

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We tried intracutaneous tests, and investigated nasal secretion, esosinophilic cells of blood, and psychosomatic aspect according to the Cornell Medical Index Health Questionare concerning 84 patients with allergic rhinitis. Then selecting 6 patients who showed positive skin reaction against house dust extract only, we carried out the specific desensitization therapy.
The results obtained were as follows: 42% of the whole patients sh owed allergic heredity. As complications, urticaria and bronchialasthma were predominant. 29% suffered all the year and 20% only in winter. Mornings or the times when the temperature fell suddenly were apt to provoke nasal fit. Food had no causal relation with the fit of nasal allergy, but many patients showed positive response in the skin test by food extracts.
Positive skin reaction to house dust extract was caused more frequently than that to other allergen extracts. Eosinophile cells of nasal secretion were found in 85%. 62% showed blood eosinophilia. Psychosomatic aspect of the patients was normal. After desensitization therapy using house dust extract in 6 patients, we marked that it was remarkable effective in 2 cases, effective in other 2 cases and ineffective in the rest. However, we could not find any variation of the numbers of eosinophilic leucocyte in nasal secretion or in blood nor any reduction of skin reaction.

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