嗜酸性筋膜炎

<正>嗜酸性筋膜炎(eosinophilic fasciitis,EF)是一种罕见的硬皮病样疾病,由Shulman~[1]在1974年首次报道,以对称性的四肢肿痛、皮肤硬化、外周血嗜酸性粒细胞增多、高丙种球蛋白血症、血沉加快等为主要临床特征。EF在各年龄段均可发病,平均发病年龄多集中在40~50岁之间~[2],男女发病率基本一致~[3]。目前尚无国际诊断标准,EF的诊断多建立在典型的临     

癌伴引流区淋巴结结节病样肉芽肿反应病理学观察

目的讨论癌伴引流区淋巴结结节病样肉芽肿反应(SGR)，避免诊断为结核及其他肉芽肿病变。方法对2例肺癌、3例食管癌和2例乳腺癌伴引流区淋巴结SGR和癌组织进行组织学分析，并与典型肺门和颈部淋巴结结核进行组织学对比。结果7例淋巴结SGR中，伴食管鳞癌2例、腺癌1例，肺腺癌、腺鳞癌各1例，乳腺浸润性导管癌2例。引流区均无结核、结节病及其他肉芽肿病变。SGR结节均无干酪样坏死。结论癌伴引流区淋巴结SGR可见于鳞癌及腺癌。此病变为机体对异源性抗原物质的一种免疫反应。     

氯雷他定联合布地奈德气雾剂治疗嗜酸粒细胞性支气管炎的疗效观察

目的探讨氯雷他定联合布地奈德气雾剂治疗嗜酸粒细胞性支气管炎的临床疗效。方法 2010年1月～2013年12月来本院治疗的80例嗜酸粒细胞性支气管炎患者按随机数字表分成观察组45例,对照组35例;对照组仅给予布地奈德气雾剂2次,早晚各1次,400μg/次;观察组给予布地奈德气雾剂的基础上联合使用氯雷他定片10 mg,每晚睡前一次口服。两组均连续治疗4周,治疗后对咳嗽症状的评分、诱导痰嗜酸粒细胞百分比的比较和观察,并作统计学分析。结果治疗后3 d咳嗽症状的控制的比较两组差异具有统计学意义,但7 d后以及4周后两组差异无统计学意义。两组患者的诱导痰嗜酸粒细胞百分比比较差异无统计学意义。结论雷他定联合布地奈德气雾剂治疗嗜酸粒细胞性支气管炎能迅速改善患者症状,适合在临床上推广。     

Uncommon phenotypes of acute myelogenous leukemia: basophilic, mast cell, eosinophilic, and myeloid dendritic cell subtypes: a review

The potential of the transformed (leukemic) multipotential hematopoietic cell to differentiate and mature along any myeloid lineage forms the basis for the phenotypic classification of acute and chronic myelogenous leukemia. Although most cases of leukemia can be classified phenotypically by the dominant lineage expressed, the genotype within each phenotype is heterogeneous. Thus, covert genetic factors, cryptic mutations, and/or polymorphisms may interact with the seminal transforming genetic mutations to determine phenotype. The phenotype usually is expressed sufficiently to determine the lineage that is dominant in the leukemic clone by light microscopic examination, by cytochemistry of blood and marrow cells, and by immunophenotyping.The basis for the frequency of the AML phenotypes is unclear, although there is a rough concordance with the frequency of marrow precursor cells of different lineages. The least common AML phenotypes are a reflection of the least common blood or marrow cell lineages: acute basophilic, acute mast cell, acute eosinophilic, and acute myeloid dendritic cell leukemia. We discuss the features of these uncommon phenotypes and review the criteria used for their diagnosis.     

Significance of IgG4-positive cells in severe eosinophilic chronic rhinosinusitis

Background

IgG4 production is regulated by type 2 (IL-4 and IL-13) and regulatory (IL-10) cytokines involved in the pathophysiology of chronic rhinosinusitis (CRS). We sought to determine the pathophysiological characteristics of IgG4-positive cells in sinonasal tissues in CRS, especially eosinophilic CRS (ECRS).

Association between impaired IL-10 production following exposure to Staphylococcus aureus enterotoxin B and disease severity in eosinophilic chronic rhinosinusitis

Background

IL-10 is a major anti-inflammatory cytokine that prevents inflammation-mediated tissue damage. We characterized the production of IL-10 by sinonasal tissue cells following exposure to Staphylococcus aureus enterotoxin B (SEB), which elicits cellular responses and is associated with the pathogenesis of eosinophilic chronic rhinosinusitis (ECRS).

血吸虫感染鼠血清SEAIC水平与肝脏病变关系的动态观察

采用分离纯化的兔抗ＳＥＡ－ＩｇＧ以生物素－亲和素放大系统，用ＣａｐｔｕｒｅＥＬＩＳＡ方法检测感染血吸虫鼠血清中抗ＳＥＡ循环免疫复合物（ＳＥＡＩＣ）水平在感染后各周的动态变化；并在观察肝脏病变的同时，采用图像分析技术，动态测定各周肝内虫卵肉芽肿的直径和面积。结果表明，血清ＳＥＡＩＣ在感染后４ｗｋ即可检出，６－７ｗｋ时达高峰，以后有所下降，但至实验观察结束时（１２ｗｋ）仍维持在较高水平。感染后４ｗｋ，肝组织内发现虫卵，但到５ｗｋ时尚未形成虫卵肉芽肿病变，至６ｗｋ时，肝内形成巨大的虫卵结节，其直径和面积于７ｗｋ时达高峰，此后逐渐下降，其动态变化与血清ＳＥＡＩＣ水平的动态变化相吻合，表明血清ＳＥＡＩＣ水平的高低可以作为反映肝脏病变程度的指标，并提示ＳＥＡＩＣ在日本血吸虫病的免疫发病机理中可能起重要作用。