胰腺实性假乳头状瘤.pptx

胰腺实性假乳头状瘤

1.Franzdescribedthistumorin1959asa“papillarytumorofthepancreas,benignormalignant”2.1996,WHOinitsclassificationofexocrinepancreatictumors,recognizedthemas“solidpseudopapillarytumors”ofthepancreas.3.Lowpotentiallymalignant,about10%havemalignantbehavior4.CapsuleintactornothasarelationtothemalignantbehaviorandrecurrenceaftersurgeryFranzVK.Tumorsofthepancreas.In:Atlasoftumorpathology:fasc27–28,ser7.Washington,DC:ArmedForcesInstituteofPathology,1959:32–33PapavramidisT,PapavramidisS.Solidpseudopapillarytumorsofthepancreas:reviewof718patientsreportedinEnglishliterature.JAmCollSurg,2005,200(6):965-972

Features1.Unusualprimarytumorofthepancreasaccountfor9%ofthecystictumorofpancreasand1%-2.25%oftheexocrinepancreatictumors2.Withalowpotentialformalignancy3.Unknowncellorigin4.Seenmostlyinyoungwomen,maybeacceleratedbypregnancythemaletofemaleratiois1:9.5.KlimstraDS,WenigBM,HeffessCS.Solidpseudopapillarytumorofthepancreas:atypicallycysticcarcinomaoflowmalignantpotential.SeminDiagnPathol2000;17:66–80

TUMORSITES010304020506PancreaticHead:39.8%Tail:24.1%BodyandTail:19.5%Body:11.2%Neck:3.6%ExtrapancreaticSPTwasfoundin1.8%patients

Metastasis:Livermetastasisisseeninafewcases,andrarecasesoflymphnodemetastasis,peritonealspread,andmultiplicityhavebeenreportedExtracapsularInvasion:SPTPinfrequentlyinvadesacapsuleandthesurroundingstructures,mainlythespleen,portalvein,andduodenum.

Of553patients,45(8.1%)werediagnosedasmalignantSPTP

InvolvedOrgans:PortalVein/SpleenicVein/SuperiorMesentericVein:11OmentumorPeritoneum:7Duodenum:7Liver:6Spleen:4Stomach:3Colon:2DiaphragmaticMuscle:1LeftKidney:1PengFY,ZhenHH,XinBW,etal.Solidpseudopapillarytumorodthepancreas:Areviewof553casesinChineseliterature.Wo