Fig. 2

Contralateral lymph node metastasis in recurrent ipsilateral breast cancer. a Planar sentinel node scintigraphy 15 min after periareolar injection of 70 MBq ^99mTechnetium-labelled nanocolloid (NanoHSA-ROTOP®), with detection of the sentinel node (pink arrow) in the left axilla (PB = injection site covered with lead). b Maximum intensity projection of the FDG PET/CT scan, demonstrating diffuse multifocal hypermetabolism of the recurrent mamma carcinoma on the right, without lymph node metastases or distant metastases. c Intraoperative left axilla with detection of two patent blue V and technetium-positive lymph nodes