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时间:2019-08-23
《炎性肌纤维母细胞瘤》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、万方数据·776·中国肿瘤临床炎性肌纤维母细胞瘤2007年第34卷第13期摘要炎性肌纤维母细胞瘤(IMT)是近年被认识和正式命名的独立的中间型(低度恶性)肿瘤,涵盖了以往从炎性反应性病变到肿瘤的一系列诊断。发生于肺和全身各处,表现局部肿块,可伴有发热、体重减轻、盗汗及淋巴结肿大等全身症状。病变以单发或多灶发生,局部浸润性生长,侵犯血管,局部复发,少数病程进展快而致死。较大肿块局部浸润性生长临床和影像学颇似恶性肿瘤。组织学显示炎症背景下不同数量纤维母细胞、肌纤维母细胞、淋巴细胞、浆细胞、嗜酸性粒细胞和组织细胞,间质为粘液性、纤维血管
2、性或胶原性。病变可类似炎症性反应性增生,也可出现坏死、细胞异型增生易与梭形细胞肉瘤/癌混淆。真正病因尚不清楚,已证实肿瘤内肌纤维母细胞有间变性淋巴瘤激酶(ALK)基因重排和表达,并有ALK基因与Rb-2蛋白基因的融合,证实肿瘤性增生本质。本文对该病的认识过程、遗传学研究、病理学、影像学及临床行为做一综述。关键词炎性肌纤维母细胞瘤中间型肿瘤诊断InflammatoryMyofibroblasticTumorCaoHaiguangReviewedbyLiuSuxiangENTDepartmentoftheTianjinFirstCen
3、tralHospital.TianjinInflammatorymyofibroblastictumor(IMT)hasbeenrecognizedandformallydescribedasaninter—mediatetypeoftumorwithlowpotentialmalignancy,comprisingarangeofdiagnosesfrompathologicalchangesinvolvedininflammatoryreactionstotumors.Itisfoundinallpartsofthehuman
4、body。usual-lypresentingwithaclinicalmanifestationofalocallumpandgeneralsymptomssuchasfever,weightloss,nightsweatsandlymphadenectasis,etc.Ithasunifocalormuhifoealsymptomswithacapacityforregionalinfiltrativegrowth,vascularinvasion,localrecurrenceandevenrapiddevelopment,
5、causingac—celerateddeathinafewcases.Thetumorscanbeofconsiderablesizeandarecapableofinfiltrativegrowth,mimickingamalignanttumorclinicallyandradiologically.Myofibroblast,lymphocyte,plasmo—cyte,eosinophilgranulocyte,histiocyte,mucousinterstitium,andvascularorcollagenousf
6、iberinvary—ingamountscanbefoundmicroscopically.Thesefeaturesmimicinflammatoryreactivehyperplasiaandalso,butlessSO,necrosis,cellulardysplasiaandfascicularsarcoma.Theexactetiologyofthislesionisunknown.Thereisexpressionofanaplasticlymphomakinase(ALK)inIMTresultingfromafu
7、sionoftheALKgenetotheRan—bindingprotein2(RANBP2)gene.Thediagnosticprocess,genetics,patholo—gy,radiology,andclinicalbehaviorofIMTisdescribedherein.KeywordsInflammatorymyofibroblastomaIntermediatetypetumorDiagnosis1概述炎性肌纤维母细胞瘤(Inflammatorymyofibroblastictumor.IMT)是一种少见而
8、独特的间叶性肿瘤.表现低度恶性或交界性肿瘤特点,近年通讯作者:曹海光hg—c@163.netWHO提出此命名。已逐渐得到广泛认同[1,2】。IMT多发生于肺,也见于头颈、躯干、内脏及四肢软组织。由于临床及影像学表现侵袭性占位性病变,组织形态变化多样
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