rib sarcoma

例句：

1. 1.He was diagnosed with a rib sarcoma and underwent surgery to remove it.
   他被诊断出患有肋骨肉瘤，并接受了手术以切除它。
2. 2.The patient's condition worsened after the surgery, and he required further treatment for the rib sarcoma.
   手术后，患者的病情恶化，需要进一步治疗肋骨肉瘤。
3. 3. Due to the complexity of the rib sarcoma, the prognosis is not optimistic.
   由于肋骨肉瘤的复杂性，预后并不乐观。