In Regard to Borm et al

To the Editor: We read with great interest the article by Borm et al on the lymph node atlas in breast cancer based on fluorodeoxyglucose-positron emission tomography.1 The authors should be commended for their laborious task of contouring lymph nodes and their high-quality analysis. They analyzed lymph node metastasis patterns based on contouring guidelines of the Radiation Therapy Oncology Group and the European Society for Radiotherapy and Oncology (ESTRO)2,3 and concluded that neither adequately covers lymph node metastasis.

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