Yang Ping let them touch to feel the teratoma tumor through tactile sensation. However, his imagination was rather rich.
The pelvic tumor was shaped like a dumbbell with the sacral canal tumor, with one end larger and the other end smaller.
For a complete removal of the tumor, Yang Ping planned to divide the tumor into two parts, first remove the larger tumor in the pelvis. This way, without the obstruction of the large tumor, he could open the sacral canal in a wide space and slowly remove the small tumor inside.
One blood vessel after another was ligated and cut off, freeing it from these constraints.
Yang Ping ligated and cut off the connection between the tumor and the inside of the sacral canal, then removed the entire tumor from the pelvis and gave it to Xiao Su, who placed it on a special sterile table.
The structure of the sacrum was complex, with a sacral canal, sacral foramen, and nerves extending from both sides of the sacral foramen.