高频彩超诊断急性肠系膜淋巴结炎的价值

目的　明确高频彩超诊断急性肠系膜淋巴结炎的临床意义。方法　回顾分析 2 3例肠系膜淋巴结炎患儿的高频彩超资料 ,并与治疗后对比分析。结果　所有病例腹腔内均显示 5个以上低回声椭圆形结节 ,治疗后淋巴结数目明显减少。结论　高频彩超为临床诊断肠系膜淋巴结炎提供可靠依据     

直肠癌术中骶前静脉丛出血的原因与防治

1骶前静脉丛的局部解剖 骶前筋膜是盆筋膜层增厚部分，开始于第一骶椎体前方，附着于第三、四骶椎前方，向前附着于直肠肛管交界处和直肠筋膜。此筋膜与骶骨之间有骶中动脉和骶前静脉丛。骶前静脉丛属于椎外静脉系前丛的一部分，主要由骶中静脉和骶外静脉所形成，是椎体静脉系统的尾端部分，通常与直肠系膜静脉无交通支。椎体静脉在椎体骨松质中具有静脉窦状结构，起自椎体的中央，     

Could Chronic Mesenteric Originated Hypoxia Insult Produce Opposite Pathologic Features： Hypoplasia and Hyperplasia of the Intestine

Chronic ischemia produces corresponding tissue hypoplasia. However, here we report a distinctive hypertrophy of the intestine due to chronic mesenteric insufficiency, which was confirmed by angiography in two patients with opposite characteristic pathologic presentation of intestine. During surgery of the first patient, an approximately 60cm long ileum with sausage consistency and cyanosis color was identified proximal to the caecum; wall-attached thromboembolism material and the hypertrophied segment of ileum were removed. In the other patient, the intestine wall was paper thin; after aorto-mesenteric bypass the intestine wall grew thicker. Post operative recovery of both patients was uneventful. The commonly observed situation after a long-standing hypoxic insult in a setting of chronic mesenteric ischemia is that the target tissue will at least develop a slight hypoplasia. However, the cases we present here had either pronounced hyperplasia or severe hypoplasia. We thus report it, expecting to identify a special mechanism to explain this paradox.     

原发性肠系膜恶性淋巴瘤2例

例1，男，33岁。因间歇性上腹痛1余年，近1月来右上腹有时自己扪及包块就诊。检查全身浅淋巴结不肿块，右上腹近脐处可扪及4．5cm×2cm之腊肠样包块，质中硬，表面光滑，稍可活动。B超示右上腹实质性肿块。结肠气钡双重造影无异常征象。肿块在横结肠肝曲后上方。于2005年3月6日剖腹探查，术中发现横结肠系膜近后腹膜部有4cm×5cm×7cm肿块，质硬，表面不平，灰白色，境界清。病理示恶性淋巴瘤弥漫型。多型T细胞型。按AnnArbor分期属IE期。[第一段]     

大鼠肠系膜淋巴结高内皮微静脉与淋巴迷路之间的网状纤维支架的研究

目的 研究大鼠肠系膜淋巴结内高内皮微静脉与淋巴迷路之间淋巴细胞归巢的通路.方法 用镀银染色光镜观察法和冻裂割断扫描电镜观察法观察健康、成熟Wistar大鼠肠系膜淋巴结的基质网状结构.结果 位于高内皮微静脉和淋巴迷路周围有网状纤维支架,在二者相临近部位有密集交织的网状纤维网.结论 淋巴结内高内皮微静脉和淋巴迷路之间密集交织的网状纤维网,为细胞的居留和迁移提供结构支持和适宜的微环境,可能是淋巴细胞归巢的重要通路.     

直肠癌全直肠系膜切除112例诊治体会

目的探讨直肠全系膜切除在预防直肠癌术后局部复发中所起的作用以及直肠全系膜切除的并发症问题。方法对2000年8月以来共112例直肠癌术中进行全直肠系膜切除的疗效和并发症进行分析。结果全组病例无手术中死亡,术后吻合口瘘7例,发生率为9.7%(7/72);术后吻合口狭窄3例,发病率为4.2%(3/72);会阴部切口感染6例,发生率为15%(6/40);术后肿瘤局部复发2例,发生率为2.7%(2/72)。结论直肠癌中进行全直肠系膜切除能有效预防和降低直肠癌局部复发率,但由该操作带来的问题也不容忽视。