Very late relapse of germ cell tumor as a teratoma: a case report and review of the literature

Abstract

Very late relapses of germ cell tumors (GCTs) are rare. There are few reports of relapses occurring beyond 20 years of initial treatment. Here we describe a case of a very late relapse of Stage I testicular non-seminomatous germ cell tumor 27 years after orchiectomy. The relapse presented as a retroperitoneal mass in the precaval lymph nodes with negative tumor markers. It was resected and pathology confirmed it as metastatic teratoma. This case emphasizes the importance of lifelong surveillance for patients with GCTs.