From the nasal investigations of 330 cases having chronic bronchitis or bronchiectasis, the chronic paranasal sinusitis was found in 79 or 91.8% of 86 cases having chronic bronchitis, of which bronchogrames revealed slight dilatation of the bilateral basal bronchi, while that was found in 63 or 25. 8 or 244 cascs having bronchiectasis, of which bronchograms demonstrated mostly saccular dilatations. In the cases of the former series the syndrome occured generally in relatively younger childhood and occasionally without the manifestation of preceding respiratory disease, and characterized frequently by obstructive ventilatory insufficiency on the lung function tests and markedly increased hilar marking on x-ray films. Therefore it is more difficult to obtain complete cure of bronchial disorders as well as of paranasal sinusitis in the former series than in the latter.
From this clinical observation, it seemed reasonable to recognized a close causality between paranasal sinusitis and swelling of hilar lymphnodes. As an experiment to examine this causality, P³², Au¹⁹⁸ or P³²-labeled staphylococcus aureus were injected into the maxillary sinus of rabbits and the specific activity calculated one or two hour after the injection was observed to be significantly stronger in the hilar lymphnodes than that in the other regions.

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Effective palliation for incurable carcinoma of the esophagus requires that the ability to swallow food be restored. Methods that accomplish this objective should also carry low morbidity and mortality rates, and cause minimal post-operative discomfort. Six cases with inoperable carcinoma of the esophagus, have been inserted a plastic prosthesis through the obstructing lesion. Three cases of them received the palliative benefits of the esophageal intubation. The first case survived for six months, the second, for two years and five months, and the third have elapsed three months after the operation up to the present. It is considered from above results, that the use of a plastic esophageal tube for the incurable carcinomatic obstruction may be useful.

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We studied the fundamental problems of the direct lymphadenography and obtained following results.
1) The contrast medium in oil was more suitable for this purpose than one in water.
2) Histologically the initial finding of the lipogranuloma was confirmed, but no possibility of the oil embolism.
3) The flow of lymph in the cervical duct was not accelerated during the manipulation, but the mechanical stimuli on the adjacent lymphsystem increased remarkably its flow.
Further some clinical cases were described and the possibility of the lymphography as a method of diagnosis at the neck dissection was referred to.

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Recently for the surgical treatment of the laryngeal cancer, the pre-operative radiation therapy has come to the limelight for the prophylaxis of the metastasis.
8 cases of the laryngeal cancer treated with 3, 000γ. and 7, 000 γ as pre-operative radiation were examined histologically and a survey was made about the period untill the operation after the pre-operative radiation. As far as 7, 000 γ of preoperative radiation therapy is concerned, it is effective to the cancer itself, but it give rise notable interstitial fibrosis and edema; on the contrary 3, 000 γ of pre-operative radiation therapy is concerned, it shows efficient prevention of the cancer cell, and the interstitial fibrous and edema is not so significant.
Results were obtained that 2 weeks are the most suitable to make the operation after the preoperative radiation therapy.

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