Most T-cell lymphomas develop from mature T cells. They usually affect older adults, typically people in their mid-60s. They are more common in men than in ...SkiptomaincontentDonateCallourhelplineHomeAboutlymphomaExpanddropdownCOVID-19andlymphomaWhatislymphoma?SymptomsoflymphomaTests,diagnosisandstagingTreatmentforlymphomaSideeffectsoftreatmentLivingwithandbeyondlymphomaRelationshipsandcaringLymphomaandtheendoflifeUsefulorganisationsGlossaryTypesoflymphomaExpanddropdownHodgkinlymphomaNon-HodgkinlymphomaChroniclymphocyticleukaemia(CLL)SkinlymphomaLymphomainchildrenandyoungpeopleCNSlymphomaOtherrarehigh-gradeB-celllymphomasPost-transplantlymphoproliferativedisorderLymphomaandHIVTransformationoflymphomaSupportforyouExpanddropdownContactusforsupport(helplineservices)OnlineservicesandsupportOnlinesupportmeetingsLymphomaVoices(podcasts)BuddyServiceLiveyourLife(selfmanagement)Wellbeing(videosandtoolkit)BooksandinformationAccessibleinformationLymphomaMattersmagazinePersonalstoriesLymphomaTrialsLink(clinicaltrialsdatabase)HealthcareprofessionalsExpanddropdownLymphomatreatmentandCOVID-19forhealthcareprofessionalsCOVID-19vaccinationinpatientswithlymphomaEducationandtrainingLymphomaEducationforNursesSignupforeducationandtrainingupdatesResearchprojectsandreportsInformationandresourcesforpatientsSupportforyourpatientsLymphomaTrialsLinkGP/PrimarycaretrainingcoursesGetinvolvedExpanddropdownChristmas2021FundraisefromhomeTakepartinaneventDonateinmemoryLeaveagiftinyourwillLotteriesandPrizeDrawsCampaigningCorporatefundraisingVolunteeringSignuptohearfromusShopAboutusEventsNewsOurpublicationsContactustwitterTwitterfacebookFacebookinstagramInstagramyoutubeYoutubeWhatareT-celllymphomas?Lymphomaisatypeofbloodcancerthatdevelopswhenwhitebloodcellscalledlymphocytesgrowoutofcontrol.Lymphocytesarepartofyourimmunesystem.Theytravelaroundyourbodyinyourlymphaticsystem,helpingyoufightinfections.Therearetwotypesoflymphocyte:Tlymphocytes(Tcells)andBlymphocytes(Bcells).LymphomascanbegroupedasHodgkinlym

T-cell lymphomas make up less than 15% of non-Hodgkin lymphomas in the United States. These are types of lymphoma that affect T lymphocytes.Whatpatientsandcaregiversneedtoknowabout cancer,coronavirus,andCOVID-19.CloseCriticalAlertBannerSearchVerenespañol|Downloadthistopic[PDF]AboutNon-HodgkinLymphomaWhatIsNon-HodgkinLymphoma?TypesofB-cellLymphomaTypesofT-cellLymphomaKeyStatisticsforNon-HodgkinLymphomaWhat’sNewinNon-HodgkinLymphomaResearchandTreatment?CancerA-ZNon-HodgkinLymphomaAboutNon-HodgkinLymphomaTypesofT-cellLymphomaT-celllymphomas makeuplessthan15%ofnon-HodgkinlymphomasintheUnitedStates.ThesearetypesoflymphomathataffectTlymphocytes.TherearemanytypesofT-celllymphoma,buttheyareallfairlyrare.T-lymphoblasticlymphoma/leukemiaThisdiseaseaccountsforabout1%ofalllymphomas.It'smostcommoninteensoryoungadults,withmalesbeingaffectedmoreoftenthanfemales. Itcanbeconsideredeitheralymphomaoratypeofacutelymphoblasticleukemia(ALL),dependingonhowmuchofthebonemarrowisinvolved(leukemiashavemorebonemarrowinvolvement).ThecancercellsareveryearlyformsofTcells. Itoftenstartsinthethymus(asmallorganbehindthebreastboneandinfrontoftheheart,whichiswheremanyTcellsaremade),andcangrowintoalargetumorinthemediastinum(theareabetweenthelungs).Thiscancausetroublebreathingandswellinginthearmsandface.Thislymphomaisfast-growing,butifithasn’tspreadtothebonemarrowwhenitisfirstdiagnosed,thechanceofcuringitwithchemotherapyisquitegood.Often,thelymphomaformofthisdiseaseistreatedinthesamewayastheleukemiaform.Formoreinformation,see AcuteLymphocyticLeukemia(Adults).PeripheralT-celllymphomasTheseareuncommontypesoflymphomathatdevelopfrommorematureformsofTcells.CutaneousT-celllymphomas(mycosisfungoides,Sezarysyndrome,andothers):Theselymphomasstartintheskin.Skinlymphomasaccountforabout5%ofalllymphomas.See LymphomaoftheSkin.AdultT-cellleukemia/lymphoma: ThislymphomaiscausedbyinfectionwithaviruscalledHTLV-1.ItisrareintheUnitedStates,andmuchmorecommoninJapan,theCaribbean,andpartsofAfrica–whereinfectionwithHTLV-1ismor

Cutaneous T-cell lymphoma (CTCL) is a rare type of cancer that begins in white blood cells called T cells (T lymphocytes).COVID-19:Advice,updatesandvaccineoptionsWeareopenforsafein-personcare.Learnmore:MayoClinicfactsaboutcoronavirusdisease2019(COVID-19)OurCOVID-19patientandvisitorguidelines,plustrustedhealthinformationLateston COVID-19vaccination bysite:ArizonapatientvaccinationupdatesArizona,FloridapatientvaccinationupdatesFlorida,RochesterpatientvaccinationupdatesRochesterandMayoClinicHealthSystempatientvaccinationupdatesMCHSSkiptositenavigationSkiptoContentThiscontentdoesnothaveanEnglishversion.ThiscontentdoesnothaveanArabicversion.SectionsforCutaneousT-celllymphomaSymptoms&causesDiagnosis&treatmentDoctors&departmentsCareatMayoClinicPrintOverviewCutaneousT-celllymphoma(CTCL)isararetypeofcancerthatbeginsinwhitebloodcellscalledTcells(Tlymphocytes).Thesecellsnormallyhelpyourbody'sgerm-fightingimmunesystem.IncutaneousT-celllymphoma,theTcellsdevelopabnormalitiesthatmakethemattacktheskin.CutaneousT-celllymphomacancauserash-likeskinredness,slightlyraisedorscalyroundpatchesontheskin,and,sometimes,skintumors.SeveraltypesofcutaneousT-celllymphomaexist.Themostcommontypeismycosisfungoides.Sezarysyndromeisalesscommontypethatcausesskinrednessovertheentirebody.SometypesofcutaneousT-celllymphoma,suchasmycosisfungoides,progressslowlyandothersaremoreaggressive.ThetypeofcutaneousT-celllymphomayouhavehelpsdeterminewhichtreatmentsarebestforyou.Treatmentscanincludeskincreams,lighttherapy,radiationtherapyandsystemicmedications,suchaschemotherapy.CutaneousT-celllymphomaisoneofseveraltypesoflymphomacollectivelycallednon-Hodgkin'slymphoma.Products&ServicesBook:MayoClinicFamilyHealthBook,5thEditionNewsletter:MayoClinicHealthLetter—DigitalEditionShowmoreproductsfromMayoClinicSymptomsSignsandsymptomsofcutaneousT-celllymphomainclude:RoundpatchesofskinthatmayberaisedorscalyandmightbeitchyPatchesofskinthatappearlighterincolorthansurroundingskinLumpsthatformontheskinandmaybreakopenEnlargedlymph