ischial callosity

例句：

1. 1. The patient's ischial callosity was tender to the touch.
   患者的坐骨结节触痛。
2. 2. The doctor performed an operation on the patient's ischial callosity.
   医生对患者的坐骨结节进行了手术。
3. 3. The patient's ischial callosity was enlarged due to a fracture.
   患者的坐骨结节因骨折而肿大。