tuberosity of ischium

例句：

1. 1.The patient had a tuberosity at the site of the injury.
   患者受伤处有一个结节。
2. 2.The doctor found a tuberosity on the patient's chest.
   医生在患者的胸部发现了一个结节。
3. 3. The surgeon removed the tuberosity and replaced it with a metal plate.
   外科医生将结节切除并用金属板替换。