| 2 | 眼和其附属器的自然杀伤细胞/T细胞淋巴瘤显示文摘PURPOSE: To review the clinical, radiological, and histopathologic features in 8 patients with natural killer/T-cell lymphoma (NKTL) involving the orbit and/or ocular adnexa, and to describe the responses of these patients to various treatment regimens. Design: Retrospective observational case series. Participants: Eight patients (5 male, 3 female) with NKTL involving the orbit and/or ocular adnexa were identified from 1999 through 2005. The mean age at presentation was 45 years (range, 26-65). Methods: We retrospectively identified patients with NKTL of the ocular adnexa treated in the authors’medical centers from 1999 through 2004 using computerized diagnostic index retrieval. The clinical records and radiologic studies were analyzed to definemodes of presentation and progression, response to therapy, and areas of anatomic involvement. Histopathologic findings, including the presence of CD3, CD56, and Epstein-Barr virus-encoded mRNA in each patient, were reviewed. Main Outcome Measurements: Time of survival from presentation to last known follow-up and tumor-related death. Results: Four of the 8 patients (50%) with NKTL involving the orbit or ocular adnexa had systemic involvement at presentation. Five of the 8 patients (62.5%) had concurrent sinonasal involvement,whereas 3 (37.5%) had orbital involvement alone. All lesions demonstrated CD3, CD56, and/or Epstein-Barr virus positivity on immunopathology studies. Therapy consisted of various chemotherapeutic regimens typically employed in the treatment of non-Hodgkins lymphoma, steroids, surgical intervention, and radiation. Seven (87.5%) patients died 5 weeks to 13 months after presentation, and 1 (12.5%) is alive without disease (5-year follow-up). Conclusions: Natural killer/T-cell orbital lymphoma is a rare Epstein-Barr virus-associated neoplasm that may occur with or without associated sinonasal involvement. Our series, the largest cohort reported to date, demonstrates the high lethality of this condition despite aggressive conventional therapy, suggesting that new treatment options should be considered early in the course of treatment of patients with this disorder. | Woog J.J. Ki. m Y.D. Yeatts R.P. 喻平平 | 2006 | 世界核心医学期刊文摘(眼科学分册)2006，2，5： | 0 |
| 3 | 10MVA超导发电机气隙电枢绕组的发热试验,结构和绝缘事故显示文摘描述了作为美国麻省理工学院10MVA超导发电机方案一部分的电枢绕组。电枢绕组呈螺旋形,采用气隙绕组,即定子工作区内没有铁齿。采用有限电压梯度的绝缘方式,通过绝缘液冷却,在结构上,绕组导体和结构圆筒之间采用粘着连接,圆筒为玻璃丝绕制的加强塑料。初步试验表明,绕组的热特性令人满意,然而在高压下很短时间后,绕组发生了重大的绝缘事故。这个事故约电枢结构系统一个考验。本文评述了绕组设计。 | Ki.,JLJr 原长明 | 1995 | 国外大电机1995，，1： | 0 |
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