The roots of a skin cancer may extend beyond the visible portion of the tumor. If these roots are not removed, the cancer will recur.
The visible portion of the tumor is surgically removed.
A layer of skin is removed and divided into sections. The ACMS surgeon then color codes each of these sections with dyes and makes reference marks on the skin to show the source of these sections. A map of the surgical site is then drawn.
The undersurface and edges of each section are microscopically examined for evidence of remaining cancer.
If cancer cells are found under the microscope, the ACMS surgeon marks their location onto the “map” and returns to the patient to remove another layer of skin- but only from precisely where the cancer cells remain.