title: Retrorectal tumors in adults.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001466:Barium Sulfate / Q000009:adverse effects; D001845:Bone Cysts / Q000601:surgery; D002813:Chondrosarcoma / Q000601:surgery; D002817:Chordoma / Q000601:surgery; D003287:Contrast Media / Q000009:adverse effects; D005260:Female; D006099:Granuloma / Q000139:chemically induced; D006390:Hemangioendothelioma / Q000601:surgery; D006391:Hemangioma / Q000601:surgery; D006393:Hemangiopericytoma / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000601:surgery*; D009456:Neurofibromatosis 1 / Q000601:surgery; D012007:Rectum / Q000002:abnormalities; D012445:Sacrococcygeal Region; D013724:Teratoma / Q000601:surgery
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate