The lymphatic drainage with the breasts is very suitable to oncology due to the fact breast most cancers is frequent to the mammary gland, and most cancers cells can metastasize (break away) from the tumor and be dispersed to other portions of the body by way of the lymphatic system. https://grok.com/share/c2hhcmQtMw%3D%3D_5ad6450c-533d-442c-a09c-9f7bce1babfb