If the tumor were only growing inside the vein, that would undoubtedly be the best outcome, a cause for universal celebration; the surgeon would simply need to remove that portion of the inferior vena cava.
There are various techniques for removal, such as if the tumor is sufficiently small, partial venous wedge resection could be performed, and the excised part can be patched with a synthetic vascular graft. If the length of the section removed is too long and cannot be patched, then autologous vessels or artificial grafts must be used for the transplant.
Among these, using autologous vessels is not a great choice because the inferior vena cava is thick, and it is difficult to find similar vessels within the body to use as a patch, leading to the common postoperative complication of the transplanted vessel being too narrow to meet the body's needs, consequently causing other complications.
