carcinoma simplex of pancreas

例句：

1. 1. The patient's condition worsened after receiving treatment for a few days.
   患者在接受治疗几天后病情恶化。
2. 2. The doctor performed an operation on the patient to remove the cancerous tissue.
   医生为患者进行了手术，以移除癌组织。
3. 3.Carcinoma simplex of the pancreas is a rare but deadly form of cancer.
   胰腺癌简单型是一种罕见的但致命的癌症。