undifferentiated cell carcinoma of lung

例句：

1. 1.The patient was diagnosed with undifferentiated cell carcinoma of lung.
   患者被诊断为未分化的肺细胞癌。
2. 2.This type of cancer is rare but can be deadly if left untreated.
   这种癌症很少见，但如果不治疗可能会致命。
3. 3.Early detection and treatment are crucial for the successful management of undifferentiated cell carcinoma of lung.
   早期发现和治疗对成功管理未分化的肺细胞癌至关重要。