What volume would you treat for an isolated axillary recurrence after BCS and whole breast RT who have resection of the recurrent disease?

In the case of prior whole breast (or chest wall only) radiation, I would typically only treat the nodal region after a isolated regional recurrence. The target volume should include at least the undissected axilla and infra/supraclavicular stations. I have not treated the IMNs after an isolated axi...

In such situation, presuming breast imaging is normal, I have only treated regional nodal areas including level 1 and 2 and undissected level 3 and supraclavicular region

After resection of an isolated axillary recurrence, we would typically treat the regional lymphatics comprehensively but not re-irradiate the breast or chest wall. I would generally include the IMNs as they are at risk of harboring microscopic disease in the setting of a positive axilla and potentia...