Breast Cancer Atlas for Radiation Therapy Planning: Consensus ...

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Contouring Comments:Breast and Chestwall1.Breast: After appropriate lumpectomy for breast onlytreatmenta.Cranial border is highly variable depending on breastsize and patient position. The lateral aspect can bemore cranial then the medial aspect depending onbreast shape and patient position.b.Lateral border is highly variable depending on breastsize and amount of ptosis.c.Medial border is highly variable depending on breastsize and amount of ptosis. Clinical reference needs tobe taken into account. Should not cross midline.8
Contouring Comments:Breast and Chestwall2.Breast-Chestwall: CTV after appropriate lumpectomy for morelocally advanced cases includes those:– With clinical stage IIb, III who receive neoadjuvantchemotherapy and lumpectomy– Who have sufficient risk disease to require post-mastectomyradiation had mastectomy done3.Chestwall: CTV after appropriate mastectomy:a.Lateral border meant to estimate the lateral border of the previousbreast. Typically extends beyond the lateral edge of thepectoralis muscles but excluded the latissimus dorsi muscleb.Clinical reference marks need to be taken into account. Thechestwall typically should not cross midline. Medial extent ofmastectomy scar should typically be included 9
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Page 3 and 4: Content→ Overlying principles: sl
Page 5 and 6: Overlying principles: Chestwall Con
Page 7: Breast and Chestwall Contour: Anato
Page 11 and 12: Contouring Comments:Regional Nodal
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Breast Cancer Atlas for Radiation Therapy Planning: Consensus ...

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