ABSTRACT
Objective ToinvestigatetheCTfeaturesofpulmonarysclerosingpneumocytoma(PSP)soastoimprovethelevelof clinicaldiagnosis.Methods ClinicalandCTfeaturesof16patientswithPSPconfirmedbysurgeryandpathologywereanalyzedretrospectively. Results Of16patients,2weremaleand14werefemale,including12femalepatientsover50yearsold.All16lesionsweresolitary roundnodulesormasses.12lesionswerelocatedintherightlungand4intheleftlung.Therewere10lesionswithuniformdensity, and4lesionswithcalcification,inwhich1casewasdiffusedcalcification,and2lesionshadcysticdegeneration.Theenhancedscanwas performedin12patientsandalllesionswereobviouslyenhanced.5lesionsappearedweltvesselsign,1lesionshowedtheaircrescent sign,and1lesionpresentedhalosign.Conclusion Ifasolitarypulmonarynoduleormassinthelungshowscalcificationwith (or)"vascularbordersign","aircrescentsign","dizzysign"andotherCT manifestations,thepossibilityofPSPwillbeconsidered.