CASE RECORDS of the Massachusetts General Hospital: case 44112.
D006769:Hospitals, General; D006801:Humans; D008404:Massachusetts; D008499:Medical Records; D009369:Neoplasms; D012516:Osteosarcoma; D012187:Retroperitoneal Space; D012509:Sarcoma
RETROPERITONEAL SPACE/neoplasms; SARCOMA, OSTEOGENIC/case reports