【摘要】 目的：探讨不同细胞或组织起源的骨肿瘤和肿瘤样病变在锁骨的发病率及分布特点以及在征象上与长管状骨骨肿瘤的异同。材料和方法：回顾性研究２０例经活检、手术病理证实，３例经化验、临床和Ｘ线随诊证实的锁骨肿瘤和瘤样病变的Ｘ线平片、ＣＴ和病理诊断。结果：２３例中１３例胸骨端受累，８例肩峰端受累，发生于骨干１例，病变侵犯全骨１例。恶性１５例、良性８例，基本包括了各类较常见的骨肿瘤和瘤样病变。结论：锁骨内段肿瘤发生率高且恶性的可能性大；各种锁骨肿瘤和瘤样病变多数不具有四肢长管状骨骨肿瘤的典型征象，要推断其组织来源往往比长管状骨骨肿瘤和瘤样病变更加困难，但通过仔细分析Ｘ线征象，必要时辅以ＣＴ检查并结合病史和发病部位，判断病变的良、恶性在多数情况下是可能的更多还原

【Abstract】 Purpose:Toinvestigatethecharacteristicsinincidenceanddistributionoftumorandtumor-likediseaseoftheclaviclewithdiferenthistologicaloriginsascomparedwiththelongbones.Materialsandmethods:Theplainfilm,CTandpathologicaldataof20caseswithtumorortumor-likediseasesoftheclavicleprovedpathologicalyand3casesprovedbylaboratorytests,clinicalhis-toryandX-rayfolow-upwereretrospectivelystudied.Results:Thelesionsarisedatthesternalendsin13ofthe23cases,attheacromialendsin8,inthediaphysisin1andinanothercasethelesionin-volvedthewholebone.Therewere15malignantand8benignlesionsincludingalmostalkindsofcommonbonetumorsandtumor-likediseases.Conclusion:Therewasahigherincidenceoftumoratthemedialpartoftheclavicleandmorelikelymalignantinnature.Lackoftypicalimagingfindingsmightbeafeatureofclaviculartumorsandtumor-likedisease,renderingitmoredificulttoinferthehistologicaloriginoftheselesionsascomparedwithitscounterpartsinlongbones.However,carefulanalysisofclinicalhistoryandX-raysigns,supplementedwithCTexaminationmakesitpossibletodeterminethenatureofthelesionsinmostsituations.更多还原