Type A thymoma : a rare cause of neoplastic cardiac tamponade with long-term survival

Background: The prognosis of thymoma with cardiac tamponade is generally poor. Most of the reported thymomas with cardiac tamponade were type B or type AB (mixed thymoma), and cardiac tamponade due to type A thymoma, which has a better prognosis compared to type B thymoma, is extremely rare. Case presentation: We encountered a case of cardiac tamponade in a 71-year-old male. He visited our emergency department due to exacerbation of fatigue and dyspnea on exertion that lasted for two weeks. Chest imaging revealed a large amount of pericardial fluid and a contrast-enhanced tumor with calcification in the anterior mediastinum. The patient underwent thoracoscopic tumor biopsy and pathological examinations revealed type A thymoma. In this case, long-term disease-free survival (7.5 years) was achieved by multidisciplinary treatment (preoperative chemotherapy, surgical excision, and postoperative radiation therapy), in accordance with the histological type. Conclusions: This case indicates that neoplastic cardiac tamponade, even in elderly patients, should not necessarily be regarded as a terminal cancer and requires a systematic investigation for underlying causes

シュヨウナイ シュッケツ ニヨリ ゾウダイ シタ イ GIST ノ 1レイ

Although there are a lot of case-reports of GIST （Gastrointestinal stromal tumor） with bleeding into the alimentary tract, cases of bleeding inside of the GIST are rare. We report a case in which a GIST increased its size associated with bleeding inside and was resected successfully. An ８２-year-old man was diagnosed as GIST （１．０×２．０ cm in size） and followed for ３ years. Its size increased to １１×８ cm in size, therefore, we performed an operation. During laparotomy, the tumor was elastic hard and located on the upper body and posterior wall of the stomach. The tumor size was approximately the head of child. A total gastrectomy with splenectomy was done. A case of sudden increasing of the tumor was histologically thought to bleed inside of it. The increased size of tumors revealed a malignant potential and/or hemorrage, the tumor should be resected as soon as possible

ハイ アスペルギローマ ジュツゴ ハイロウ ニ タイシテ PushampSlideホウ ト ロープウェイホウ オ オウヨウ シタ EWS ニヨル キカンシ ジュウテンジュツ ガ ユウヨウ デアッタ 1レイ

Background : Bronchial occlusion using endobronchial Watanabe Spigot（EWS）is reported to be useful for treatment of secondary intractable pneumothorax and thoracic empyema, peripheral bronchial fistula. However, the methods of the bronchial occlusion are sometimes difficult and EWS sometimes fall off from plugged bronchus. Case : A ４４ year old man presented hemosputum. He was diagnosed with Aspergilloma. We performed a resection of the right upper lobe and S６ partial resection. Air leak appeared at postoperative day ３. We performed EWS embolization with an application of push & slide method and the ropeway method, and the persistent air leak disappeared. Conclusion : Our method is useful when the bronchial occlusion is difficult

Recent Results from LHD Experiment with Emphasis on Relation to Theory from Experimentalist’s View

he Large Helical Device (LHD) has been extending an operational regime of net-current free plasmas towardsthe fusion relevant condition with taking advantage of a net current-free heliotron concept and employing a superconducting coil system. Heating capability has exceeded 10 MW and the central ion and electron temperatureshave reached 7 and 10 keV, respectively. The maximum value of β and pulse length have been extended to 3.2% and 150 s, respectively. Many encouraging physical findings have been obtained. Topics from recent experiments, which should be emphasized from the aspect of theoretical approaches, are reviewed. Those are (1) Prominent features in the inward shifted configuration, i.e., mitigation of an ideal interchange mode in the configuration with magnetic hill, and confinement improvement due to suppression of both anomalous and neoclassical transport, (2) Demonstration ofbifurcation of radial electric field and associated formation of an internal transport barrier, and (3) Dynamics of magnetic islands and clarification of the role of separatrix

Physicochemical features of rivers and lakes in pantanal wetland

The Pantanal is one of the largest wetland in the world, and its located almost in the central part of South America. Preliminary studies on the chemical features of waters were carried out in July, 1983 in Rio Paraguai and its tributaries in southern Pantanal, and in January, 1986 for some lakes near Porto Jofre and a river in northern Pantanal. The former showed an extremely oligotrophic character and the latter a eutrophic character, while the nitrogen seemed to be the limiting nutrient rather than phosphorus in both waters. The oxygen deficiency in water seemed rather common throughout the area studied in spite of the difference in water temperature and the organic matter contents.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq