carcinoma of postcricoid region

例句：

1. 1. The patient's postcricoid region wasswollen and tender to thetouch.
   患者的后喉部区域肿胀且触感疼痛。
2. 2. The doctor performed a biopsy on the patient's postcricoid region.
   医生对患者后喉部区域进行了活组织检查。
3. 3. The patient haddifficulty swallowing due to the swelling inthe postcricoid region.
   由于后喉部区域的肿胀，患者吞咽困难。