Mature teratoma identified after postchemotherapy surgery in patients with disseminated nonseminomatous testicular germ cell tumors

Mature teratoma is often found in resected retroperitoneal residual tumor masses (RRTM) after chemotherapy for disseminated nonseminomatous testicular germ cell tumors (NSTGCT). The aim of this report is to describe the clinical course of patients after resection of residual teratoma, with particular emphasis on relapse with either growing mature teratoma or secondary non‐germ cell malignancy.

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