Dear mobetsis, The decision about whether or not, or when to do staging scans depends on different things such as tumor size, lymph
nodeLymph node biopsy
Swollen glands
Swollen lymph nodes in the groin
Swollen lymph nodes under arm status, features of the tumor - more or less aggressive looking under the microscope.
A bone scan and ct scans are not necessarily always done. If the tumor at biopsy is large, or some of the features of the tumor make it more suspicious for a possibility of spread they may do these staging studies before surgery. If there is a small tumor, no positive lymph
nodesLymph node biopsy
Swollen glands
Swollen lymph nodes in the groin
Swollen lymph nodes under arm after surgery they may decide that these studies are not necessary.
Any of the above doctors could order the staging studies if they were felt to be necessary, often it would be the medical oncologist who does so.