资源简介 (共23张PPT)第八章 消化系统疾病Alimentary system组织学和临床相关性差门脉高压 portal hypertension肝功能衰竭hepatic failure.Clinical feature门脉高压 Portal hypertensionPortal hypertension will lead to :① 脾肿大 脾功能亢进② 胃肠道淤血 消化不良,腹泻③ 腹水有效血容量丧失大量白蛋白Enlarged spleen男性,58Y,肝炎病史21年HBsAg ( + ) , 肝硬化腹水7mAscites腹水形成机制静水压增高Increase in hydrostatic pressurein the venules and sinusoids血清白蛋白低 Low serum albuminA tendency of the kidneys toretain sodium and water(醛固酮和抗利尿激素)门体分流 Porto-systemic shunting侧枝开放食管静脉曲张痔核 hemorrhoids海蛇头 caput medusae不能解毒死于静脉曲张④ 侧枝循环开放内脏静脉血流经肝外的门V —腔V 吻合支回流到上、下腔V门V胃冠状V食管下段-胃底V丛奇V上腔V肠系膜下V直肠V丛髂V下腔V脐旁V脐周V丛腹壁浅V上下腔V食管下段—胃底V 丛曲张The thin-walled dilated veins are prone to rupture, causing massive hematemesis which can be fatal.最重要上消化道大出血食管静脉曲张食管静脉曲张破裂Inflammation and hemorrhage is seen here in the region of a ruptured varix of the esophagus.Consequences of脾肿大腹水侧枝循环Caput medusae 展开更多...... 收起↑ 资源预览