“…In brief, radioisotope tracer (99m-Tc-labelled colloidal rhenium sulphide- Nanocis , Cis Biointernational) was injected subcutaneously peri-tumourly one day prior to surgery. In cases of an impalpable tumour, fine wire localization (FWL) in combination with radio-isotope occult lesion localization (ROLL) methods was implemented[ 6 ]. Immediately preoperatively, after induction of general anesthesia, 3–5 mls of isosulphan blue dye (lymphazurin ® , Ben Venue Laboratories Inc., Bedford OH) was also injected peritumorally.…”