肿瘤

例句：

1. 1. The doctor found a tumor in his leg.
   医生在他的腿上发现了一个肿瘤。
2. 2. The patient was diagnosed with a malignant tumor.
   患者被诊断出患有恶性肿瘤。
3. 3. Tumors can grow and spread throughout the body.
   肿瘤可以在体内生长和扩散。