What tissue is typically found after a pelvic hemipelvectomy?

After a pelvic hemipelvectomy, the tissue that is typically found is indeed a piece of the pelvic bone. A pelvic hemipelvectomy is a surgical procedure that involves the removal of one half of the pelvis, along with surrounding tissues and structures, often as a treatment for certain malignancies or severe trauma in that area.

The procedure may also include the removal of associated soft tissues like muscle, fat, and occasionally organs (depending on the extent of the cancer or injury). However, the critical aspect of this surgery is the excision of the pelvic bone itself. Removal of the pelvic bone is significant for the reconstruction and understanding of how the patient's mobility and support will be affected post-operation.

Other options such as partial liver resection or the uterus only do not accurately reflect the procedure performed during a hemipelvectomy, which is specific to the pelvic region. Similarly, while skin may be altered during the surgery, the procedure does not primarily involve the removal of just a thin ring of skin. Understanding this context solidifies the knowledge of surgical anatomy related to the pelvis and its associated tissues in oncology.