第22卷第1期2013年2月中国组织化学与细胞化学杂志CHINESEJOURNALOFHISTOCHEMISTRYANDCYTOCHEMISTRYVol.22.No.1Feb.2013胃肝样腺癌的临床病理特征李楠*冯振中谷从友葛霞赵艳(蚌埠医学院第一附属医院病理科,蚌埠医学院病理学教研室,安徽省感染与免疫重点实验室,安徽233030)〔摘要〕目的探讨胃肝样腺癌(hepatoidadenocarcinomaofthestomach,HAS)的临床病理学特点、发生机制和免疫组化特征,以提高诊断水平。方法收集并分析5例胃肝样腺癌的临床特征和病理资料,采用HE染色、免疫组化方法,并复习文献。结果组织学胃肝样腺癌具有管状腺癌、粘液性癌和肝样分化腺癌的移行过渡,肿瘤细胞呈小梁状、巢团状,间质为丰富的血窦。免疫表型胃肝样腺癌AAT(5/5)、ACT(5/5)、CEA(5/5)、AFP(4/5)均为阳性,Heppar1灶性阳性(2/5)。结论胃肝样腺癌是一种少见的高度恶性、侵袭性强的特殊类型胃癌,组织学呈肝细胞样腺癌,免疫表型AFP、AAT和ACT阳性有助诊断。〔关键词〕肝样腺癌;胃;甲胎蛋白;免疫组织化学〔中图分类号〕R735.201〔文献标识码〕ADOI:10.3870/zgzzhx.2013.01.017ClinicopathologicfeaturesofhepatoidadenocarcinomaofthestomachLiNan*,FengZhenzhong,GuCongyou,GeXia,ZhaoYan(DepartmentofPathology,TheFirstAffiliatedHospitalofBengbuMedicalCollege,BengbuMedicalCollege,AnhuiKeyLaboratoryofInfectionandImmunology,Anhui233030,China)〔Abstract〕ObjectiveToinvestigatetheclinicopathologicalfeaturesofhepatoidadenocarcinomaofthestomach(HAS)forimprovementofitsdiagnosis.MethodsFivecasesofHASwerestudiedusingroutinehistopathology(HEstaining),andimmunohistochemistry.Clinicopathologicalcharacteristicswerethendescribedwithliteraturereview.ResultsUndermicroscope,thetumorconsistedoftubularadenocarcinoma,mucoidadenocarcinomaandhepatoiddifferentiatedadenocarcinoma;andcancercellswerearrangedinasolidortrabecularpattern,separatedbyplentifulsinusoid-likebloodvessels.Immunohisto-chemically,thetumorwaspositiveforAAT(5/5),ACT(5/5),CEA(5/5),AFP(4/5),and2caseswerehandfullypositiveforHeppar1.ConclusionHASisararegastriccarcinomawithhighlymalignantandmoreaggressivebehaviour.Additionally,thetumortypicallyhasacharacteristicappearancebymicro-scopicobservationandimmunohistochemicalphenotype.〔Keyword...