Malignant Transformation Into Chondrosarcoma Of A Retroperitoneal Residual Mass After Chemotherapy For A Testicular Seminoma (Germinal Cell Tumor)

Introduction: The transformation into a chondrosarcoma of a residual nodal mass during the evolution of tumors of testicular germ cells treated with chemotherapy based on platinum salts is an exceptional possibility (Two cases reported in the literature). We report an observation illustrating this extremely rare situation. Observation: It is a forty-eight year old man who was operated on for cancer of the right testicle. He underwent a right orchidectomy. The histological study of the operating room was in favor of a seminoma, classified