Other treatment-related pain includes (1) abdominal pain after allogeneic bone marrow transplantation, which may be associated with acute graft-versus-host disease; (2) abdominal pain associated with typhlitis (infection of the cecum), which occurs when the patient is immunocompromised;(3) phantom sensations and phantom limb pain after an amputation; (4) peripheral neuropathy after administration of vincristine; and(5) medullary bone pain, which may be associated with admin istration of granulocyte colony-stimulating factor