In radioactive materials are implanted into the tissues to be treated.

Adjuvant therapy involves radioactive treatment to treat the cancer affected tissues.

Explanation:

In order to lessen the chances of cancer re-occurrence, adjuvant therapy is used after primary treatment of cancer or surgery of the cancerous substance in human body. This therapy is performed in various ways, one of which is the radioactive therapy.

Radioactive therapy is the process in which through powerful energy rays or x-rays cancer tissues are destroyed to prevent spreading of cancer. It can be performed in external and internal both ways.  

the ileocecal valve (also called bauhin valve), which limits the rate of food passage into the cecum and may prevent material from returning to the small intestine.