压迫性萎缩(Compression atrophy).ppt

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1、压迫性萎缩(Compression atrophy),Tissues are compressed for long time.,肾积水(hydronephrosis):肾盂扩张(pyelectasis)肾实质薄如粉皮(Thinning of renal parenchyma),Morphology:fatty degeneration,脂肪肝大体：肝肿大,边缘钝,淡黄色,质软,油腻感Gross:yellow,soft,large,greasy,(1)干性坏疽(dry gangrene),部位:体表及四肢特点：较干燥，感染较轻，边界清楚原理:水分蒸发,动脉阻塞，静脉回流畅通Tissue die

2、s,dries up,and turns black.,H2S+Fe+FeS,贫血性梗死(anemic infarct),脾梗死:灰白、干燥、质实、边界清，锥体状,看到这！,Nutmeg Liver槟榔肝,肺出血性梗死(infarction),4.梗死的类型(Types),(1)贫血性梗死（anemic infarct）白色梗死(white infarct)含血少(2)出血性梗死(hemorrhagic infarct)红色梗死(red infarct)含血多(3)败血性梗死(septic infarct)含菌栓子,梗死(infarction of kidney):锥体形,骨肉瘤,骨肉瘤,Li

3、poma（脂肪瘤）,Leiomyoma（子宫平滑肌瘤）,Leiomyosarcoma（子宫平滑肌肉瘤）,leiomyosarcoma（子宫平滑肌肉瘤）,纤维肉瘤,中央型肺癌,门脉性肝硬化,圆形/椭圆结节,直径0.15-0.5cm,1cm,弥漫性分布,切面黄褐色,岛屿状结节,纤维间隔包绕,门脉性肝硬化,Lobar Pneumonia（红色肝样变期）,小叶性肺炎：散在以细支气管为中心的灰黄色病灶,小叶性肺炎病灶相互融合,Bronchiectasis（支气管扩张）,bronchiectasis,bronchiectasis,纤维素性心包炎,（rheumatic pericarditis,Cor vi

4、llosum,绒毛心,Pathological changes,Macrography,瘢 痕 肾,病理变化:胃溃疡,部位：胃小弯，近幽门多见，尤在胃窦部。特点：一个，圆形或椭圆形，皱襞集中,直径2cm。溃疡边缘整齐，底部平整,深。,2.急性蜂窝织炎性阑尾炎（acute phlegmonous appendicitis）,阑尾肿胀、高度充血表面纤维素性渗出物 脓点,大体：色灰白，质硬，无包膜界不清，活动度差侵润性生长乳头下陷，橘皮样外观,浸润性导管癌,Here is a classic infiltrating ductal carcinoma,This infiltrating ductal

5、 carcinoma of the breast is definitely infiltrating the surrounding breast.The central white area is very hard and gritty,because the neoplasm is producing a desmoplastic reaction with lots of collagen.This is often called a scirrhous appearance.,肉眼：*橡皮样，灰白柔韧，边界不清*转移特殊性：脑脊液、浆膜面、卵巢、子宫、骨髓,浸润性小叶癌,占10%2

6、5%。,2）子宫颈腺癌(cervical adenocarcinoma),A large protruding mass is seen in cervical canal extending to the fornix of vagina.,子宫平滑肌瘤,A large,solitary leiomyoma,Red degeneration,子宫内膜癌,浸润性肺结核：病变较局限于肺上叶，有空洞形成，并有肺实变,慢性纤维空洞性肺结核：显示结核空洞。,大叶性干酪性肺炎,小叶性干酪样肺炎,脊椎结核,肺门淋巴结高度肿大,淋巴结结核,Gross 2,流行性脑脊髓膜炎,流行性脑脊髓膜炎,Gross 1,流行性脑脊髓膜炎,髓样肿胀期,肠伤寒,肠伤寒,阿米巴痢疾肠,细菌性痢疾肠,菌痢肠表面假膜,动脉粥样硬化,动脉粥样硬化,动脉粥样硬化纤维斑块,