Would you offer adjuvant endocrine therapy to a patient with a history of ER-positive DCIS, s/p bilateral mastectomy, now with chest wall recurrence of DCIS four years later?

This is an unusual case, and I wonder how she presented initially and with the recurrence, and if she has a history of exposure to radiation. In addition, a pathology second opinion to confirm the lack of an invasive component is in order.

Theoretically, close to all of the breast tissue should have...