常见肺部弥漫性疾病的CT诊断.ppt

常见肺部弥漫性疾病的CT诊断,以结节为主的弥漫性疾病,尘肺结节病粟粒性肺结核转移瘤含铁血黄素沉着症,结节病,支气管血管树周围间质的明显增厚胸膜下小结节,Interstitial thickening,bronchiectasis,特发性含铁血黄素沉着症,病理:原因不明,青年人多见,有咯血及难治性贫血;大体:镜下:肺泡腔内含有大量吞噬含铁血黄素的巨嗜细胞,淀粉样变性,分型：血管型，支气管结节型，实质结节型，弥漫型肺泡间隔型,以线状或网状影为主的弥漫性病变,肺纤维化石棉肺慢性间质性肺炎结缔组织性疾病癌性淋巴管炎,IPF,IPF的阶段表现,毛玻璃样阴影提示病变处于活动期,石棉肺,蜂窝,线样影,增厚钙化的胸膜,Septal thickening,parenchymal band,混合型结缔组织病恶化期的活动性肺泡炎,Indistingushiable with IPF,Fine network in mixed connective tissue disease,EAA急性期,文3F2,以斑片状密度增高为主的弥漫性疾病,PAP过敏性肺炎PCP各种肺炎及 机遇性肺炎的早期,肺泡蛋白沉着症,镜下:肺泡内充满嗜酸性均匀一致的无结构颗粒物(磷脂质),PAS染色阳性；II型肺泡上皮增生剥脱；间质内淋巴细胞浸润和不同程度的纤维化；有些病例可和机遇性感染并存。,过敏性肺炎,Ground glassSmall nodule,Subacute stage of allergic alveolitis,Hyper-sensitive pneumonitis,卡氏肺囊虫性肺炎(carini),急性白血病,肺曲霉菌感染,Ground glassNodule with haloAspergillus(confirmed by bronchoalveolarlavage),Bleomycin lung toxicity,Follow up after corticosteroid therapy,Acute radiation pneumonitis in a lymphoma patient,Same patient:intercurrent PCP,Endobronchial spread of Tuberculosis,BOOP,Bronchiectasis with mucous plugging,Bronchiectasislead to BOOP,以囊状或不规则密度减低为主的弥漫性疾病,淋巴管平滑肌瘤病组织细胞病X肺气肿闭塞性支气管炎,肺气肿,肺泡中心性气肿,腺泡中心性气肿,小叶中心性气肿,支气管扩张,CCT,HRCT,急性弥漫性肺疾患,Diffuse Panbronchiolitis,lymphangiomyomatosis,Centrilobular emphysema,肺泡微石症,原因不明，1/2有家族史，发展缓慢镜下：遍布肺泡腔的钙化小球，直径0.01-2.8mm，呈浅兰紫色葱皮样结构，PAS染色为强阳性。周围的肺泡间隔大致正常，晚期可有间质纤维化,