Aggressive multimodal therapy may prolong disease-free survival in recurrent primary retroperitoneal embryonal carcinoma.

Introduction: Primary retroperitoneal extragonadal tumours relapsing after initial chemotherapy have a poor prognosis.

Presentation Of The Case: We report a case of primary retroperitoneal embryonal carcinoma in a patient with negative open testes biopsy. After the first line of chemotherapy (4 cycles BEP) secondary surgery with extirpation of a retroperitoneal residual mass was performed.