Keywords: post-chemotherapy retroperitoneal lymph node dissection, nerve-sparing retroperitoneal lymph node dissection, lymph node surgery penis, intravesical chemotherapy, personal history of chemotherapy, nasal cavity cancer chemotherapy, blood cancer chemotherapy, hyperthermic intraperitoneal chemotherapy (hipec), intrapleural chemotherapy, prostate cancer chemotherapy, bladder cancer chemotherapy, testicular cancer chemotherapy, hormone based chemotherapy, intraarterial chemotherapy of tumors