Retroperitoneum Carcinoma, also known as retroperitoneal cancer, is related to retroperitoneal sarcoma and retroperitoneal germ cell neoplasm, and has symptoms including sister mary joseph's nodule An important gene associated with Retroperitoneum Carcinoma is WDR97 (WD Repeat Domain 97). The drugs Tacrolimus and Sirolimus have been mentioned in the context of this disorder. Affiliated tissues include lymph node and liver.