Multi-phaseenhancedCTfindingsandpathologicalbasisoflocalized malignantperitonealmesothelioma
10.3969/j.issn.1002-1671.2019.04.016
- VernacularTitle:局限型恶性腹膜间皮瘤的多期CT增强表现与病理基础
- Author:
Zuguang WEN
1
;
Liling LONG
;
Muliang JIANG
;
Yidi CHEN
;
Zijian JIANG
Author Information
1. 广西医科大学第一附属医院放射科
- Keywords:
localizedperitonealmesothelioma;
computedtomography;
pathology
- From:
Journal of Practical Radiology
2019;35(4):576-579,583
- CountryChina
- Language:Chinese
-
Abstract:
Objective ToinvestigatetheenhancedCTfindingsandpathologicalfeaturesoflocalized malignantperitonealmesothelioma (LMPM)andimprovetheaccuracyofdiagnosis.Methods Theimagingandclinicaldataof5casesofLMPMconfirmedbypathology werecollected,thefeaturesofCTenhancedimagingwereanalyzedretrospectivelyandcomparedwiththepathologicalresults.Results Allofthe5caseswereisolatedsolidandcysticmasswithirregularshape,andtherangeofmaximumdiameterofthelesionbeing 8.4-13.3cm,inwhich1casewaspolycystic,andtheother4casesweresolidandcysticmass.CTvalueofthecysticpartwasabout 13.0-27.8 HU,andnoenhancementshowedoncontrast-enhancedphase.Thethicknessofcysticwallandseparationwasuneven, whiletheCTvalueofsolidpartwasabout32.6-40.8HU,andmoderateenhancementwasseeninarterialphase(△CTvaluewasabout30.9-38.4HU ),followedbyslightlyincreaseofenhancementdegreeinvenousphase,andthedecreaseofenhancementdegreeinequilibriumphase. Separationandalotofvesselshadowwereseenin3caseswhileperitonealcavity,pelviceffusionandintraperitonealimplantmetastasiswereseen in1case.Forthepathologicaltypesofpatientsinthisgroup,1casewasepithelialtype,mainlycomposedofcysticcomponent,andthe other4caseswerefibroustypeorbiphasictype,mainlycomposedofcysticandsolid,withsmallcysticdegeneration,necrosis,fibrousseptum, bloodsupplyvessels,andetc.Somelesionsinvadedthesurroundingstructure.Conclusion Thepathologicaltypesoflocalizedmalignantperitoneal mesotheliomaaremostlyfibroustypeandbiphasictypewhichCTfindingsaremostlymanifestedascysticandsolidmasses.Lobulatedand wallnodules,uneventhicknessofcysticwallandseptumcanbeseen,andthedensityofcysticpartialisrelativelyhigher.Solidpartis moderateenhancement,andinvenousphaseismoreobviouswithenhancedvascularseenintheseptum.CTenhancementcombined withclinicalmanifestationsarehelpfultomakeinsuggestivediagnosis.
