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What is the appropriate nodal coverage a invasive ductal carcinoma status post lumpectomy with 50% or more of the SLN biopsied (for example, 2 of 4 SLN) showing micrometastases?

Would you change your management based on receptor status (ER/PR+/HER2 neg vs triple neg) or menopausal status (pre vs post menopausal)? Would you treat whole breast alone, high tangents or add a 3rd SCV field? Would a high risk Oncotype Dx score change your recommendation?
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Radiation Oncology · Varian Medical Systems/Allegheny health network
Answered on

I don't know what 50% or more for SNLN means, as knowing absolute number of nodes is more important as median number of SNLN dissected is usually between 1-2 . The treatment volume in patients with micromets is highly variable across practitioners- from no adjustment of field (based on IBCSG 23-01) ...

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