disease has location cancer retroperitoneal cancer A primary or metastatic malignant neoplasm involving the retroperitoneum. The vast majority of cases are carcinomas, lymphomas, or sarcomas. DOID:5875 EFO:0007466 ICD10:C48 ICD10:C48.0 ICD9:158 ICD9:158.0 MESH:D012186 MONDO:0005941 NCIT:C3537 SCTID:126872008 cancer of retroperitoneal space malignant neoplasm of retroperitoneal space malignant neoplasm of retroperitoneum malignant neoplasm of retroperitoneum and peritoneum malignant retroperitoneal cancer malignant retroperitoneal neoplasm malignant retroperitoneal space neoplasm malignant tumor of peritoneum and retroperitoneum neoplasm of retroperitoneum neoplasm of the retroperitoneum retroperitoneal neoplasm retroperitoneal space cancer tumor of retroperitoneum retroperitoneal neoplasm retroperitoneal space