胸部常見CT征象認讀

胸部常見CT征象認讀麻涌醫(yī)院放射科盧勁松整理pptTheSecondaryPulmonaryLobule肺小葉（直徑1-2.5CM）整理ppt小葉支氣管、終末細支氣管整理ppt肺動脈pulmonaryartery

整理ppt小葉間隔interlobularsepta

整理ppt肺靜脈pulmonaryvein

整理ppt腺泡pulmonaryacini

整理ppt正常HRCT.整理ppt中央肺動脈。整理ppt支氣管與相鄰肺動脈直徑大致相等。整理ppt肺動脈常分為兩個直徑相當?shù)姆种А?/p>

整理ppt肺靜脈常分成許多細小的分支,這些分支與主支構(gòu)成直角。

整理ppt葉間裂（厚度小于1mm，邊緣光滑，均一厚度）整理ppt常見偽影雙側(cè)下肺近心臟處，肺血管脈動偽影。低密度區(qū)，可以錯當作擴大的支氣管。整理ppt常見偽影主葉裂偽影。整理ppt常見偽影血管雙重偽影。整理ppt正常小葉間隔normalsepta

整理ppt正常小葉中心動脈整理ppt正常小葉中心動脈centrilobularartery2整理ppt肺靜脈Pulmonaryveins

整理ppt肺間質(zhì)病變發(fā)生于：慢性間質(zhì)性肺炎、彌漫性間質(zhì)纖維化、結(jié)節(jié)病、癌性淋巴管炎、結(jié)締組織?。t斑狼瘡、類風濕性關(guān)節(jié)炎、硬皮病、皮肌炎）、塵肺（矽肺、煤矽肺、石棉肺）、組織細胞?。亍⒘馨凸芷交×霾?。ＣＴ：界面征、小葉間隔增厚、小葉中心結(jié)構(gòu)增厚、胸膜下線、長疤痕線（扭曲肺結(jié)構(gòu)）、蜂窩樣改變、結(jié)節(jié)影、牽拉性支擴、磨玻璃樣改變。整理pptCase1F/60y乳腺癌術(shù)后，現(xiàn)呼吸困難。整理ppt分析：（1）小葉間隔增厚整理ppt分析：（2）支氣管血管周圍間質(zhì)增厚支氣管袖口癥：整理ppt分析：(3)斜裂增厚整理ppt分析：（4）大結(jié)節(jié)影整理ppt網(wǎng)狀陰影：病理上主要為小葉間隔增厚、小葉內(nèi)間隔增厚、小葉核心增厚、胸膜下線影、蜂窩肺和支氣管血管周圍間質(zhì)增厚等改變?？梢娪谔匕l(fā)性間質(zhì)性肺炎、結(jié)節(jié)病、癌性淋巴管炎、特發(fā)性含鐵血黃素沉積、感染性疾病等。雙肺網(wǎng)狀陰影多見與特發(fā)性間質(zhì)性肺炎、結(jié)締組織病肺浸潤、結(jié)節(jié)病等。單側(cè)以癌性淋巴管炎和放射性肺炎為主。整理ppt上病例為癌性淋巴管炎。整理pptCase279歲、淋巴瘤病史整理ppt整理ppt小葉間隔增厚？(a)Yes(b)No整理ppt雙側(cè)光滑增厚的小葉間隔整理ppt支氣管血管間質(zhì)是否增厚？(a)Yes(b)No整理ppt增厚的支氣管血管間質(zhì)整理ppt胸膜下間質(zhì)增厚？(a)Yes(b)No整理ppt斜裂增厚整理pptWhatisthemostlikelydiagnosis?最可能的診斷？？？(a)Pulmonaryedema(肺水腫）(b)Interstitialfibrosis（間質(zhì)纖維化）(c)Lymphangiticspreadoflymphoma（癌性淋巴管炎）整理pptDiagnosis:Lymphangiticspreadoflymphoma,withinterlobularseptalthickening。癌性淋巴管炎（小葉間隔增厚）整理pptlymphocyticinterstitialpneumonitis(LIP)淋巴間質(zhì)局限性肺炎整理pptCase358-year-oldmanwithheartdisease整理ppt小葉間隔增厚？？？(a)Yes(b)No整理ppt雙側(cè)小葉間隔增厚整理ppt支氣管血管間質(zhì)增厚？？？(a)Yes(b)No整理ppt支氣管血管間質(zhì)增厚整理pptIstherethickeningofthesubpleuralinterstitium?(胸膜下間質(zhì)增厚？)(a)Yes(b)No整理pptNO!!!整理pptWhatisthemostlikelydiagnosis?(最可能的診斷？)(a)Pulmonaryedema肺水腫(b)Interstitialfibrosis間質(zhì)纖維化(c)Lymphangiticspreadofcarcinoma癌性淋巴管炎整理ppt(a)Pulmonaryedema肺水腫Correct.Becauseofthehistoryofheartdisease心臟病史,characteristicabnormalities典型的異常,ymmetry對稱,andthepredominanceofseptalthickeningindependentlung,thisdiagnosismustbeconsidered考慮mostlikely.整理ppt文獻：間質(zhì)性肺水腫（1）肺血重新分布：左心衰--肺淤血。（2）支氣管周圍袖口癥：正常厚度約1mm—結(jié)締組織內(nèi)液體存積—增厚。X-肺紋理及肺門血管增粗、模糊.（3）肺透過度下降：液體分布到支氣管血管周圍、小葉間隔、小葉內(nèi)支氣管血管周圍、肺泡間隔—透過度下降。（4）間隔線：KerleyB線—x上與肋膈角處與胸膜垂直。（5）胸膜增厚：液體—入臟層胸膜下薄層結(jié)締組織—胸膜下結(jié)締組織水腫--水腫位于臟層胸膜與結(jié)體組織間，不隨體位移動。（６）胸腔積液：胸膜腔內(nèi)液體來自壁層胸膜。整理ppt不同原因的肺水腫心源性肺水腫：左心衰（見于心梗、二尖瓣病變。腎性肺水腫：急慢性腎功能衰竭，可合并尿毒癥－－水鈉潴留、左心衰－肺水腫－－上腔靜脈、奇靜脈增寬。肺微血管損傷性肺水腫：除肺水腫外，還可見出血及細胞滲出–肺血分布正常、無袖口癥、間隔線。肺泡實變斑片狀，肺野外為分布。毒性氣體吸入、胃液吸入、藥物、溺水、顱內(nèi)壓升高、高原性肺水腫、復張性肺水腫。整理pptCase4a53-year-oldwomanwithandabnormalchestradiographandmildshortness（短缺）ofbreath（異常胸片，氣短）

整理ppt整理pptIsseptalthickeningpresent?(a)Yes(b)No小葉間隔增厚嗎？整理ppt增厚的小葉間隔整理pptAretheseptasmoothornodularinappearance?(a)Smooth(b)Nodular

小葉間隔增厚是結(jié)節(jié)狀還是光滑增厚？整理ppt小葉間隔結(jié)節(jié)狀增厚整理ppt胸膜下間質(zhì)結(jié)節(jié)影整理ppt支氣管袖口癥整理pptPossiblediagnosesinclude:(a)pulmonaryedema肺水腫(b)interstitialfibrosis間質(zhì)纖維化(c)sarcoidosis結(jié)節(jié)病最可能的診斷？整理pptsarcoidosis結(jié)節(jié)病Correct.Nodularthickeningofinterlobularseptaandfissurescanbeseeninthisdiseaseandlymphangiticspreadofcarcinoma.（小葉間隔結(jié)節(jié)狀改變可見于結(jié)節(jié)病、癌性淋巴管炎、塵肺）。支氣管血管間質(zhì)、胸膜下間質(zhì)結(jié)節(jié)狀改變—對結(jié)節(jié)病有特征性的診斷。整理pptCase5

a42-year-oldmanwithmildshortnessofbreathforanumberofyears（氣促多年）整理pptIsseptalthickeningvisible?(a)Yes(b)No

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小葉間隔增厚嗎？整理ppt增厚的小葉間隔整理ppt扭曲的肺結(jié)構(gòu)整理ppt葉間裂的扭曲整理pptDiagnosis:End-stagesarcoidosiswithfibrosisandinterlobularseptalthickening.結(jié)節(jié)病伴隨征象：肺結(jié)構(gòu)扭曲、小葉間隔結(jié)節(jié)狀增厚、牽拉性支擴、蜂窩肺等。整理ppt文獻：肺間質(zhì)病變界面征：支氣管血管間質(zhì)增厚—支氣管血管束增粗、支氣管袖口癥；液體—邊緣光滑、腫瘤或肉芽組織—結(jié)節(jié)狀界面。胸膜下線：近胸膜面1cm內(nèi)弧線狀影—為肺纖維化征象。長疤痕線：蜂窩肺：結(jié)節(jié)影：小結(jié)節(jié)—2-5mm，肉芽、腫瘤、纖維組織。肺結(jié)構(gòu)扭曲變形及牽拉支擴：磨玻璃樣改變：整理pptCase6a68-year-oldwomanwithrheumatoidarthritis（風濕性關(guān)節(jié)炎）andprogressive累計shortness短缺ofbreathovera2-yearperiod整理ppt整理pptThepredominantabnormalfindingonthesescansis?(a)interlobularseptalthickening小葉間隔增厚。(b)honeycombing蜂窩肺主要的異常表現(xiàn)？整理ppt蜂窩肺整理ppt部分層面小葉間隔增厚整理pptWhatdoeshoneycombingreflecthistologically?(a)Interstitialedema肺間質(zhì)水腫(b)Interstitialinfiltration滲透bycells(c)Interstitialfibrosis蜂窩肺的組織學—肺間質(zhì)纖維化的后期表現(xiàn)。整理pptDiagnosis:Rheumatoidlungdisease,withfibrosisandhoneycombing.風濕性肺疾病，肺纖維化、蜂窩肺。壁厚0.8-1MM，胸膜下3-4cm范圍內(nèi)或近葉裂處；早期囊腔小而少；囊壁為折疊破壞的肺泡壁及氣道壁。整理pptCase7a74-year-oldwomanwithprogressiveshortnessofbreathover6months

整理pptThemostsignificantabnormalfindinginthisstudyis:(a)interlobularseptalthickening小葉間隔增厚(b)honeycombing蜂窩肺(c)subpleuralemphysema胸膜下肺氣腫主要的異常表現(xiàn)？整理ppt蜂窩肺整理pptWhatisthemostlikelydiagnosis?(a)Idiopathicpulmonaryfibrosis(IPF)特發(fā)性肺間質(zhì)纖維化(b)Autoimmunedisease(e.g.,rheumatoidlungdisease)自身免疫性疾病(c)End-stagehypersensitivitypneumonitis過敏性肺炎(d)Asbestosis石棉肺(e)Drug-relatedlunginjury麻醉藥物肺損害(f)Sarcoidosis結(jié)節(jié)病最可能的診斷？整理pptIPF:特發(fā)性肺間質(zhì)纖維化磨玻璃密度：肺野周圍—活動性肺泡炎癥。網(wǎng)狀改變：小葉間隔、小葉中心結(jié)構(gòu)增厚—蜂窩狀改變的前期。蜂窩狀改變：胸膜下間質(zhì)纖維化：胸膜下弧線狀影、臟層胸膜及葉間胸膜增厚。肺氣腫：小葉中心型肺氣腫。肺實變：支擴：整理ppt蜂窩肺整理ppt牽拉性支擴整理ppt小葉間隔增厚整理pptCase8

86-year-oldmanwithchronicmyelogenousleukemia骨髓性的白血病,treatedusingmethotrexate化療,nowcomplainsofshortnessofbreath氣短.整理ppt整理pptDoesthismanshowevidenceoffibrosisandUIP?(a)Yes(b)No顯示明顯的纖維化和普通間質(zhì)性肺炎？？屑性間質(zhì)性肺炎（DIP）、普通性間質(zhì)性肺炎（UIP）。整理ppt(a)Yes

Correct.Findingsindicativeofusualinterstitialpneumonitis(UIP)visibleinthispatientinclude:honeycombing;蜂窩肺irregularfissures;葉裂扭曲irregularinterlobularseptalthickening;小葉間隔不規(guī)則增厚。tractionbronchiectasis.牽拉性支擴整理ppt蜂窩肺整理ppt葉裂扭曲整理ppt不規(guī)則小葉間隔增厚整理ppt牽拉性支擴整理pptThemostlikelydiagnosisis:可能的診斷？(a)idiopathicpulmonaryfibrosis(IPF)(b)lunginvolvementbyleukemia白血病肺浸潤。(c)drug-relatedlunginjury化療藥物肺損害。整理ppt(c)drug-relatedlunginjury

Correct.Thepatternoffibrosisseeninthispatientisnonspecific,andcouldbecausedbyIPF.Therecenthistoryoftreatmentwithmethotrexatemakesdrug-relatedfibrosismostlikely.Lunginvolvementbyleukemiawouldlikelyresultinanappearancesimilartothatoflymphangiticspreadofcarcinomawithseptalthickeningbeingthepredominantfinding.IPF一可有同種表現(xiàn)，但患者有最近化療史，白血病肺浸潤小葉間隔增厚明顯。整理pptCase9

ina63-year-oldmanwithahistoryofscleroderma硬皮病andprogressiveshortnessofbreath進行性喘憋

整理pptFindingsinclude:

interlobularseptalthickening;小葉間隔增厚。tractionbronchiectasis;牽拉性支擴subpleuralhoneycombing;胸膜下蜂窩肺irregularfissures.葉裂扭曲整理ppt小葉間隔增厚整理ppt牽拉性支擴整理ppt胸膜下蜂窩肺整理ppt斜裂扭曲整理pptCanyoubeconfidentthatlungfibrosisispresent?(a)Yes(b)No你能確定肺纖維化存在？整理pptYesCorrect.Thepresenceofhoneycombingisdiagnosticoffibrosis.Tractionbronchiectasisisalsostronglysuggestiveoffibrosis.Interlobularseptalthickeningandirregularfissuresarenonspecific,andcannotbereliedupontodiagnosefibrosis.蜂窩肺、牽拉性支擴—肺纖維化存在。小葉間隔增厚、斜裂扭曲對肺纖維化的診斷意義不大。整理pptDiagnosis:Scleroderma,withlungfibrosis,honeycombing,andtractionbronchiectasis硬皮病—肺纖維化：蜂窩肺、牽拉性支擴。結(jié)締組織病及肺血管炎—主要為肺間質(zhì)病變。肺內(nèi)實變—肺泡內(nèi)滲出、肉芽腫形成、肺泡內(nèi)出血、水腫。肺內(nèi)多發(fā)結(jié)節(jié)—肺內(nèi)血管炎、肉芽腫、肺栓塞所形成。常見于：wengner\類風濕性關(guān)節(jié)炎。肺間質(zhì)病變—肺間質(zhì)性肺炎、肺泡炎—間質(zhì)纖維化、蜂窩肺。整理pptCase10

ina61-year-oldwomanwithprogressiveshortnessofbreath進行性喘憋.整理pptWhichofthefollowingfindingsareshownonthisscan?上圖包含癥像:(a)Honeycombing蜂窩肺(b)Asubpleuralline胸膜下線(c)Aperipheralandsubpleuraldistribution外圍胸膜下分布(d)Alloftheabove以上全包括整理pptAlloftheabove

Correct.Smallsubpleuralcystsarepresenttypicalofmildhoneycombing.輕度的蜂窩肺Anirregularlineparallelsthepleuralsurface,termedasubpleuralline.胸膜下線整理pptWhichofthefollowingismostlikelyinthiscase?最符合的診斷？(a)Idiopathicpulmonaryfibrosis(IPF)特發(fā)性間質(zhì)纖維化(b)Autoimmunedisease(e.g.,rheumatoidlungdisease)自身免疫性疾病(c)End-stagehypersensitivityPneumonitis過敏性肺炎(d)Asbestosis石棉肺(e)Drug-relatedlunginjury藥物肺損害(f)Sarcoidosis結(jié)節(jié)病整理pptIdiopathicpulmonaryfibrosis(IPF)

Correct.Idiopathicpulmonaryfibrosis(IPF).Intheabsenceahistorytosuggestoneofthespecificdiagnosesonthislist,IPFismostlikely.Itaccountsfor60%ofcaseshavingthisappearance.IPF在該病例無特異性，60%有該表現(xiàn)。整理pptCase11a34-year-oldmanwithprogressiveshortnessofbreath喘憋整理ppt整理pptThepredominantabnormalityinthiscaseis:明顯的異常表現(xiàn)(a)honeycombing蜂窩肺(b)intralobularinterstitialthickening小葉間質(zhì)增厚整理pptintralobularinterstitialthickening

Correct.Honeycombingisnotvisibleinthispatient.Afineirregularreticular不規(guī)則的網(wǎng)狀改變patternispresentinthelungperiphery,representingintralobularinterstitialthickening.小葉間質(zhì)增厚Insomepatientswithpulmonaryfibrosis,thisfindingwillpredominate.Otherfindingsoffibrosisinthispatientincludetractionbronchiectasis.牽拉性支擴Thedifferentialdiagnosisofthisappearanceisidenticalasthatforhoneycombing.整理ppt小葉間質(zhì)增厚整理ppt牽拉性支擴整理pptDiagnosis:Idiopathicpulmonaryfibrosis特發(fā)性間質(zhì)纖維化,withintralobularinterstitialthickening.整理pptCase12a71-year-oldmanwithprogressiveshortnessofbreath整理ppt整理pptThepredominantabnormalityinthiscaseis:突出的表現(xiàn)(a)honeycombing蜂窩肺(b)intralobularinterstitialthickening小葉間質(zhì)增厚整理pptintralobularinterstitialthickening

Correct.Honeycombingisnotclearlyseeninthispatient.Afinebutirregularreticularpattern不規(guī)則的網(wǎng)狀改變ispresentinthelungperiphery外圍,representingintralobularinterstitialthickening小葉間質(zhì)增厚.Insomepatientswithpulmonaryfibrosis,thisfindingwillpredominate.Otherfindings其他征象offibrosisinthispatientincludetractionbronchiectasis牽拉性支擴,andirregularinterlobularseptalthickening不規(guī)則小葉間隔增厚.Thedifferentialdiagnosisofthisappearanceisidenticaltothatforhoneycombing.整理ppt小葉間質(zhì)增厚整理ppt牽拉性支擴整理ppt不規(guī)則小葉間隔增厚整理pptDiagnosis:Idiopathicpulmonaryfibrosis特發(fā)性間質(zhì)纖維化,withintralobularinterstitialthickening.整理pptCase1334-year-oldwomanwithlupuserytematosus狼瘡紅斑整理ppt整理pptCanyoudiagnosefibrosis?能診斷纖維化？(a)Yes(b)No

整理pptYes

Correct.HRCTobtainedinthesupineandpronepositions仰臥和俯臥位showsanumberoffindingsindicatingfibrosis指示,including:honeycombingwhichismildindegree;輕度蜂窩肺tractionbronchiectasis;牽拉性支擴intralobularinterstitialthickening;小葉間質(zhì)增厚interlobularseptalthickening小葉間隔增厚;andasubpleuraldistribution.胸膜下分布整理ppt輕度蜂窩肺整理ppt牽拉性支擴整理ppt小葉間質(zhì)增厚整理ppt小葉間隔增厚整理pptDiagnosis:Systemiclupuserythematosus（SLE系統(tǒng)性紅斑狼瘡肺部表現(xiàn)—肺結(jié)締組織病,withfibrosisandhoneycombing.整理pptCase14

a65-year-oldwomanwithrheumatoidarthritis風濕性關(guān)節(jié)炎andmilddyspnea

輕度呼吸困難整理pptCanyoudiagnosefibrosis?能診斷纖維化？(a)Yes(b)No整理pptCorrectincluding:tractionbronchiectasis;牽拉性支擴intralobularinterstitialthickening;小葉間質(zhì)增厚asubpleuralline.胸膜下線整理ppt牽拉性支擴整理ppt小葉間質(zhì)增厚整理ppt胸膜下線整理pptDiagnosis:Rheumatoidlungdisease肺結(jié)締組織病,withmildpulmonaryfibrosis輕度肺纖維化andintralobularinterstitialthickening小葉間質(zhì)增厚.整理pptCase15a26-year-oldwomanwithmixedconnectivetissuedisease混合結(jié)締組織病,basilarcracklesonphysicalexamination雙肺底水泡音,andrestrictivediseaseonpulmonaryfunctiontests

肺功能受限整理ppt整理pptCanyoudiagnosefibrosis?能診斷纖維化？(a)Yes(b)No整理pptYes

Correct.Including:tractionbronchiectasis;牽拉性支擴intralobularinterstitialthickening小葉間質(zhì)增厚;asubpleuraldistribution胸膜下分布整理ppt牽拉性支擴整理ppt小葉間質(zhì)增厚整理pptDiagnosis:Mixedconnectivetissuedisease混合結(jié)締組織病,withpulmonaryfibrosis,andintralobularinterstitialthickening整理pptCase16a81-year-oldmanwithsignificantoccupationalexposuretoasbestos石棉職業(yè)史整理ppt整理pptIspulmonaryfibrosispresent?肺纖維化存在？(a)Yes(b)No整理pptYes

Correct.Findingsoffibrosisinclude:tractionbronchiectasis;牽拉性支擴intralobularinterstitialthickening;小葉間質(zhì)增厚asubpleuraldistribution.胸膜下分布irregularinterlobularseptalthickening不規(guī)則的小葉間隔增厚整理ppt牽拉性支擴整理ppt小葉間質(zhì)增厚整理ppt胸膜下分布整理ppt小葉間隔增厚整理pptDiagnosis:石棉肺Asbestosiswithtractionbronchiectasis牽拉性支擴andintralobularinterstitialthickening小葉間質(zhì)纖維化.整理ppt縱隔窗整理pptpleuralthickeningandcalcification胸膜增厚、鈣化椎旁區(qū)域橫膈胸膜肥厚鈣化整理pptCase17a58-year-oldmanwithahistoryofasbestosexposure石棉史

整理ppt可見椎旁胸膜增厚、不規(guī)則線狀影整理pptThepleuralthickeningistypicalofasbestosexposure胸膜增厚是典型的石棉肺表現(xiàn).Wouldyoudiagnoseasbestosis診斷石棉肺嗎?(a)Yes(b)No整理pptNo

Correct.Linearopacities線狀影asseeninthiscase(termedparenchymalbands肺實質(zhì)帶)arecommoninpatientswithpleuralthickening胸膜增厚,butarenotnecessarilyassociated不必須考慮withlungfibrosis肺纖維化.整理ppt肺實質(zhì)帶parenchymalbands位于下肺部，肺內(nèi)條狀影；肺實質(zhì)內(nèi)的纖維化。整理ppt盡管如此，結(jié)合病史，考慮Asbestosexposurewithpleuraldiseaseandparenchymalbands石棉至椎旁胸膜增厚、肺實質(zhì)帶。整理pptCase18a67-year-oldmanwithahistoryofasbestosexposure石棉史整理pptNo

Correct.HRCTatlungwindowsshowsirregularlinearopacities不規(guī)則的線狀影(“crow‘sfeet”烏鴉腳),withoutevidenceofhoneycombing無蜂窩肺,intralobularinterstitialthickening小葉間質(zhì)增厚,ortractionbronchiectasis牽拉性支擴.Thisappearancedoesnotindicateasbestosis無石棉特征.Linearopacities,asseeninthiscase(parenchymalbands肺實質(zhì)帶)arecommoninpatientswithpleuralthickeningrelatedtoasbestosexposure,butarenotnecessarilyassociatedwithlungfibrosis不必須考慮肺纖維化.Theyrepresentfocalareasofatelectasis焦點為肺膨脹不全,associated聯(lián)系withthepleuralthickening,orfocalareasofscarring焦點區(qū)疤痕.整理ppt烏鴉腳（"crow'sfeet"),整理ppt即盡管如此，結(jié)合病史考慮Asbestosexposurewithpleuraldiseaseandparenchymalbands。另一病例：胸膜下線椎旁胸膜增厚整理pptCase19a56-year-oldmanwithsignificantoccupationalexposuretoasbestos石棉史整理pptIstherepleuralthickening胸膜增厚youwouldconsider考慮likely可能duetoasbestosexposure石棉?(a)Yes(b)No整理pptYes

correct.Afocal焦點,calcifiedpleuralplaque胸膜鈣斑isvisibleanteriorly,typicalofasbestosexposure石棉肺典型表現(xiàn).Althoughplaquesaremorelikelyposteriorinlocation常見后胸膜,thisappearanceishighlysuggestive高度提示.整理pptCanadefinitediagnosisofpulmonaryfibrosisonthepronelungwindowscansbemade?肺窗能明確診斷肺纖維化嗎？(a)Yes(b)No整理pptNo

Correct.Thereismildseptalthickening輕度間隔增厚andreticulation

網(wǎng)狀intheposteriorsubpleuralregion后胸膜下ontheright.Thisisunassociated無聯(lián)系withadjacent臨近pleuralthickening.Thisisaverysubtleabnormality輕微的異常whichcouldrepresenttheearlieststageofasbestosis石棉肺早期表現(xiàn).However,intheabsenceofamoredefiniteabnormality明確的異常orsimilar類似findingsontheleft,itwouldbedifficult困難tomakeadefinitediagnosisoffibrosis石棉肺或肺纖維化的診斷orasbestosis.整理ppt小葉間質(zhì)增厚—輕度網(wǎng)狀改變整理pptDiagnosis:Asbestosisexposure石棉肺.Possiblefibrosis可能纖維化.文獻：石棉肺[1]胸膜改變：胸膜斑、彌漫性胸膜增厚、胸腔積液。[2]肺改變：彌漫性肺間質(zhì)纖維化—HRCT胸膜下弧線、胸膜下點狀致密影、肺實質(zhì)帶、蜂窩狀改變、胸膜下磨玻璃表現(xiàn)（肺泡壁小葉間隔增厚）；圓形肺不張（支氣管血管結(jié)構(gòu)進入-彗星尾征）。整理pptCase20a57-year-oldwomanwithyearsofprogressivedyspnea多年呼吸困難整理ppt整理pptIspulmonaryfibrosispresent?肺纖維化存在嗎？(a)Yes(b)No整理pptYes

Correct.Thispatientshowsanumberof許多findingsindicativeofpulmonaryfibrosis肺纖維化征象.Theseinclude:Extensive廣泛的tractionbronchiectasis

牽拉性支擴involvingbothupperlobes雙上葉;Irregularreticularopacities不規(guī)則的網(wǎng)狀anddistortionoflungarchitect