Sequential Sentinel Node Scintigraphy With Planar and SPECT/CT Images Revealed Contralateral Drainage From Ipsilateral Breast Tumor Relapse in a Patient With Bilateral Breast Cancer

AbstractRadio-guided sentinel node (SN) biopsy is routinely performed in patients with early breast cancer. However, repeated SN scintigraphy in ipsilateral breast tumor relapse (IBTR) often shows extra-axillary drainage, including contralateral axilla. A patient diagnosed with bilateral breast canc