ESTRO Multidisciplinary Management of Breast Cancer 2017

Voting 3.

• A 36 year old female with a 2 cm cancer (luminal B, grade 3) undergoes breast conservation resulting in the following margins: • Deep: <1mm, not at ink • Anterior: 2mm • Lateral: pleomorphic LCIS at ink over 3mm, invasive clear • Medial: classical LCIS at ink, invasive clear

• Which margins would you excise? 1. Deep, anterior, lateral 2. Lateral only 3. Lateral and medial 4. All margins except inferior 5. Would suggest mastectomy because of LCIS 6. No margins need re excising

• Superior: 4mm clear • Inferior: 10mm clear