資源描述：
《腎淋巴瘤 ppt課件》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在教育資源-天天文庫。
1、腎淋巴瘤張瑾淋巴瘤尸檢病例中腎臟受侵的比例達30%to60%CT僅發(fā)現(xiàn)3%–8%受侵原因：多數(shù)侵犯較為隱匿，病灶較小，CT不能顯示血源性播散腹膜后病灶的直接侵犯病變發(fā)展的晚期臨床上無癥狀體征組織病理學(xué)特征非霍奇金淋巴瘤淋巴瘤多見B細胞源常見惡性程度中等或較高更多見于淋巴結(jié)彌漫增大的病例典型CT征象單發(fā)結(jié)節(jié)多發(fā)結(jié)節(jié)腹膜后病變直接侵犯彌漫浸潤腎周病變單發(fā)結(jié)節(jié)淋巴瘤的病灶通常為低血供，增強掃描強化不明顯密度均勻，與常見的透明細胞腎癌不同在所有腎臟受侵病例中發(fā)生率占10%–20%Renallymphomaina69-year-oldman.Contrast-enhanc
2、edhelicalCTscanshowsadominant5-cmmassintherightkidney(arrow).Thereisnoevidenceofretroperitonealadenopathy.Follicular,mixedsmallcleavedandlargecelllymphomaina74-year-oldman.Contrast-enhancedhelicalCTscanshowsalargemasslocatedintheleftkidneyandextendingintotheperirenalspace.Smallnodesa
3、reseenintheretroperitoneum(arrow).多發(fā)結(jié)節(jié)最常見在所有腎臟受侵病例中發(fā)生率占60%常為雙側(cè)發(fā)生，但偶可僅見于單側(cè)Largecelllymphomainan11-year-oldboy.Thepatientpresentedwithalargeanteriormediastinalmassandrenallesions.Contrast-enhancedhelicalCTscandemonstratessmall,hypoattenuatingmassesbilaterally(arrows),atypicalfindinginr
4、enallymphoma.Thepatientrespondedwelltotreatment,andtherenallesionseventuallyresolved.Largecelllymphomaina73-year-oldwoman.Contrast-enhancedCTscanshowsbilateralrenalmasseswithcharacteristichomogeneousattenuation,smoothborders,andlowcontrastenhancement.Retroperitonealadenopathyisalsopr
5、esent(A).腹膜后病變直接侵犯另一較常見類型，占25%–30%表現(xiàn)為較大且邊界不清的腫物包裹腎門及腎臟血管結(jié)構(gòu)密度均勻腎臟動靜脈血管保持通暢，但集合系統(tǒng)常可見梗阻Diffuselymphocyticlymphomaina65-year-oldwoman.Contrast-enhancedhelicalCTscanshowsalarge,homogeneousmassenvelopingtheretroperitoneumandinvadingtherightkidney.Notehowflowismaintainedintherenalarteries(s
6、traightarrows)andleftrenalvein(curvedarrow)despitethemassivetumorburden.ThesefindingsarecharacteristicofretroperitoneallymphomaLargecelllymphomaina51-year-oldwoman.Contrast-enhancedhelicalCTscanshowsalargetumormassinvadinganddisplacingtheleftkidney.Thetumoralsoinvolvestherightsideoft
7、heretroperitoneum腎周病變腹膜后病變的直接侵犯或腎被膜的侵犯表現(xiàn)為腎竇受侵，腎周筋膜增厚，腎周腫物偶爾，腎周病變完全未侵犯腎實質(zhì)相對少見，有一定的特異性Largecelllymphomaina34-year-oldman.Contrast-enhancedhelicalCTscandemonstratesperirenalmassesbilaterally,especiallyontherightside.Theresultingmarkedcompressionanddeformityoftherightkidneyaresomewhatunu
8、sualforperir
