The common histological variant of SVC is well-differentiated adenocarcinoma with papillary structures[3, 4] but poorly differentiated carcinomas similar to our case have also been described.[3, 5] The related literature is concordant in the fact that SVC is negative for PSA and also for anti-prostate specific acid phosphatase (PSAP). Here, KLK3 is linked to adenocarcinoma.