Objective:We performed a population-based analysis focusing on primary extranodal lymphoma of either testis,kidney,bladder or prostate(PGUL).Methods:We identified all cases of localized testis,renal,bladder and prosta...
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Objective:We performed a population-based analysis focusing on primary extranodal lymphoma of either testis,kidney,bladder or prostate(PGUL).Methods:We identified all cases of localized testis,renal,bladder and prostate primary lymphomas(PL)versus primary testis,kidney,bladder and prostate cancers within the Surveillance,Epidemiology,and End Results database(1998e2015).Estimated annual proportion change methodology(EAPC),multivariable logistic regression models,cumulative incidence plots and multivariable competing risks regression models were used.Results:The rates of testis-PL,renal-PL,bladder-PL and prostate-PL were 3.04%,0.22%,0.18%and 0.01%,respectively.Patients with PGUL were older and more frequently Caucasian.Annual rates significantly decreased for renal-PL(EAPC:5.6%;pZ0.004)and prostate-PL(EAPC:3.6%;pZ0.03).In multivariable logistic regression models,older ager independently predicted testis-PL(odds ratio[OR]:16.4;pbladder-PL(OR:5.5;pbladder.Relative to primary genitourinary tumors,PGUL are associated with worse CSM for testis-PL and renal-PL but not for bladder-PL and prostate-PL,even after adjustment for other-cause mortality.
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