undifferentiated adenocarcinoma of thyroid

例句：

1. 1. The patient's thyroidgland was found to have an undifferentiated adenocarcinoma.
   患者的甲状腺发现有未分化的腺癌。
2. 2. This raredisease is often misdiagnosed asa benign condition, leading tounnecessary surgeries and treatments.
   这种罕见疾病常被误诊为良性，导致不必要的手术和治疗。
3. 3. Early detection and treatment arecrucial for the successful management of this cancer.
   早期检测和治疗对成功管理这种癌症至关重要。