This review is part two of three, which will present an update on the classification of gastrointestinal submucosal tumors. Part one treats of the diagnosis and part three of the therapeutic methods regarding gastroin...This review is part two of three, which will present an update on the classification of gastrointestinal submucosal tumors. Part one treats of the diagnosis and part three of the therapeutic methods regarding gastrointestinal submucosal tumors. In the past there has been some confusion as to the classification of gastrointestinal submucosal tumors. Changes in classifications have emerged due to recent advances in mainly immunohistochemistry and electron microscopy. The aim of this paper is to update the reader on the current classification. Literature searches were performed to find information related to classification of gastrointestinal submucosal tumors. Based on these searches the twelve most frequent submucosal tumor types were chosen for description of their classification. The factors that indicate whether tumors are benign or malignant are mainly size and number of mitotic counts. Gastrointestinal stromal tumors are defined mainly by their CD117 positivity. In the future, there should be no more confusion between gastrointestinal stromal tumors and other types of submucosal tumors.展开更多
文摘目的探讨培菲康联合四联疗法根除幽门螺杆菌(Hp)的疗效及对慢性胃炎胃黏膜病理变化和癌前病变的影响。方法取我院门诊和住院病人102例,采用随机、对照方法分两组,即对照组(A组)及治疗组(B组)。A组予四联根除Hp治疗10 d,B组在对照组基础上加培菲康0.42 g tid(与抗生素至少间隔2 h)持续服2周。入院时行胃镜及病理检查,于四联服药结束至少4周后复查Hp。随访观察1年后复查Hp和胃镜及病理,分析两组Hp根除率和Hp根除后及未根除患者胃黏膜病理变化情况。结果治疗组Hp根除率高于对照组,分别为92.2%和74.5%,两组根除率相比差异有统计学意义(P<0.05)。两组不良反应发生率差异有统计学意义(P<0.05)。两组胃黏膜炎症均减轻,但以治疗组明显。两组萎缩、肠化程度亦有减轻,但差异无显著性。而Hp未根除组慢性炎症程度、活动性炎症明显增加,萎缩、肠化程度亦增加,与Hp根除组比较差异有显著性。结论益生菌(培菲康)联合四联疗法可提高Hp根除率;根除Hp感染可减轻胃黏膜炎症,阻止萎缩和肠化的发生发展。
文摘This review is part two of three, which will present an update on the classification of gastrointestinal submucosal tumors. Part one treats of the diagnosis and part three of the therapeutic methods regarding gastrointestinal submucosal tumors. In the past there has been some confusion as to the classification of gastrointestinal submucosal tumors. Changes in classifications have emerged due to recent advances in mainly immunohistochemistry and electron microscopy. The aim of this paper is to update the reader on the current classification. Literature searches were performed to find information related to classification of gastrointestinal submucosal tumors. Based on these searches the twelve most frequent submucosal tumor types were chosen for description of their classification. The factors that indicate whether tumors are benign or malignant are mainly size and number of mitotic counts. Gastrointestinal stromal tumors are defined mainly by their CD117 positivity. In the future, there should be no more confusion between gastrointestinal stromal tumors and other types of submucosal tumors.