Internal mammary lymph node inclusion in standard tangent breast fields: effects of body habitus

The Breast Journal
Gary M ProulxPaul C Stomper

Abstract

The purpose of this study was to determine the variability of internal mammary node (IMN) coverage with standard breast tangent fields using surface anatomy as determined by computed tomography (CT) planning for patients treated with either breast-conserving treatment or postmastectomy, and to evaluate the influence of body habitus and shape on IMN coverage with standard tangent fields. This prospective study included consecutive women with breast cancer who underwent either local excision or mastectomy and had standard tangent fields intended to cover the breast plus a margin simulated using surface anatomy. CT planning determined the location of the IMN with respect to the tangent fields designed from surface anatomy. The internal mammary vessels were used as surrogates for the IMNs. CT measurements of the presternal fat thickness and anteroposterior (AP) and transverse skeletal diameters were made to determine their relationship to the inclusion of IMNs within the tangent fields. Only seven patients (14%) had their IMNs completely within the tangent fields. Twenty patients (40%) had partial coverage of their IMNs, and 23 (46%) had their IMNs completely outside the fields. IMN inclusion was inversely correlated with presterna...Continue Reading

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Citations

Feb 24, 2016·Reports of Practical Oncology and Radiotherapy : Journal of Greatpoland Cancer Center in Poznań and Polish Society of Radiation Oncology·Lucas Gomes SapienzaDavid B Mansur
Feb 1, 2003·Journal of Clinical Oncology : Official Journal of the American Society of Clinical Oncology·David K GaffneyCharles L Wiggins
Mar 4, 2017·La Radiologia medica·Gul KanyilmazLütfi Saltuk Demir

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