胰腺的超声诊断东院超声科胰腺囊肿Cysts真性囊肿Cysts真性囊肿Cysts真性囊肿Cysts假性囊肿Cysts假性囊肿Cysts慢性胰腺炎后形成胰腺假性囊肿。CY—假性囊肿胰腺假性囊肿，边界清楚，内部充满点状和斑片状回声，囊肿后方回声增强。胰腺炎后胰头前上方囊肿胰腺炎后体尾部囊肿外伤后胰尾部囊肿多囊胰多囊胰腺声像图表现：胰腺内见多个大小不等囊性结构（小箭头所示），该患者同时并有多囊肾。LIVER—肝脏；PAN—胰腺；AO—腹主动脉胰腺癌PancreaticCarcinoma二、胰腺癌胰腺癌PancreaticCarcinoma胰腺癌PancreaticCarcinoma胰腺癌PancreaticCarcinoma胰腺癌PancreaticCarcinoma胰头癌压迫胆总管引起胆总管扩张。CBD—胆总管；MASS—肿块；PV—门静脉胰头癌压迫胰管引起胰管扩张。实心箭头示胰管；空心示胰头部肿块Tumourintheheadofthepancreas(arrows),confirmedbyCT.Thetumourin(B)displaysconsiderablevascularityoncolourDoppler.(Notethecoloursensitivitysettinghasbeenreducedtoaccommodatethis,soeliminatinglow-velocityflowfromthesplenicvein.)胰头占位伴主胰管扩张、肝转移metastases胰头占位及周围淋巴结肿大肝内实占，门脉内瘤栓胰头后方肿大LN肝左叶内实性占位门脉主干内瘤栓胰体部肿块声像图。Liver—肝脏；SV—胰后脾静脉；SA—脾动脉；P—胰腺；SMA—肠系膜上动脉胰尾部肿块声像图。P—胰腺；SV—胰后脾静脉；M—肿块Acomplexmass(m)betweenthespleen(S)andtheleftkidneyisalargecarcinomaofthetailofthepancreas.胰腺体尾部占位伴肝内转移metastases诊断与鉴别诊断↑Metastaticdepositfromprimarybreastcarcinomainthebodyofthepancreas(arrow).→Theuncinateprocessisrelativelyhypoechoic(arrows)becauseoffattysparing.Focalacutepancreatitisintheheadofthepancreas.TheCBDisobstructedbyahypoechoicmassinthehead,withbloodclotsanddebriswithintheduct.Thedifferentialdiagnosiswasmalignancy.