Osteogenic sarcoma. Two cases of unexpectedly long survival.
D001859:Bone Neoplasms; D006801:Humans; D007717:Knee; D008499:Medical Records; D009369:Neoplasms; D012516:Osteosarcoma; D012509:Sarcoma
KNEE/neoplasms; SARCOMA, OSTEOGENIC/case reports