n.硬骨，骨肉瘤

Osteosarcoma is a malignant bone tumor that often originates in the growing ends of long bones.
骨肉瘤是一种恶性骨肿瘤，通常起源于长骨的生长端。
The most common site for osteosarcoma is around the knee, specifically in the distal femur or proximal tibia.
骨肉瘤最常见的发病部位在膝关节周围，特别是在股骨远端或胫骨近端。
Treatment for osteosarcoma typically involves a combination of surgery, chemotherapy, and sometimes radiation therapy.
治疗骨肉瘤通常涉及手术、化疗，有时还包括放疗的组合疗法。
Early detection of osteosarcoma is crucial as it can spread quickly to other parts of the body, such as the lungs.
早期发现骨肉瘤至关重要，因为它能迅速扩散至身体其他部位，如肺部。
Despite advances in treatment, the survival rate for patients with metastatic osteosarcoma remains relatively low.
尽管治疗技术有所进步，但转移性骨肉瘤患者的生存率仍然相对较低。
A biopsy is usually required to confirm the diagnosis of osteosarcoma.
确诊骨肉瘤通常需要进行活组织检查。
Osteosarcoma tends to occur more frequently in adolescents and young adults during their rapid growth periods.
骨肉瘤倾向于在青少年和快速生长期的年轻人中更频繁地发生。
Pain, swelling, and limited range of motion are common symptoms of osteosarcoma.
疼痛、肿胀和活动受限是骨肉瘤的常见症状。
Researchers are exploring new targeted therapies for osteosarcoma to improve patient outcomes.
研究人员正在探索针对骨肉瘤的新靶向疗法以改善患者预后。
Patients who have had previous radiation therapy are at a slightly increased risk for developing osteosarcoma later in life.
接受过先前放射治疗的患者在日后罹患骨肉瘤的风险略有增加。