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Radioactive seed localisation to guide removal of impalpable lymph nodes (Radioguided Occult Lesion Localisation using Iodine-125 seeds, “ROLLIS”)
  1. Lee Jackson1,2,
  2. Anita Geraldine Bourke2,3,
  3. Farah Abdul Aziz2,
  4. Donna Taylor2,4
  1. 1Breast Clinic, Royal Perth Hospital, Perth, Western Australia, Australia
  2. 2School of Surgery, University of Western Australia, Crawley, Perth, Western Australia, Australia
  3. 3Breast Centre, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia
  4. 4Department of Radiology, Royal Perth Hospital, Perth, Western Australia, Australia
  1. Correspondence to Dr Donna Taylor, Donna.Taylor{at}


Two patients with cancer requiring removal of specific impalpable lymph nodes for full pathological analysis underwent ultrasound-guided lesion localisation and marking with a low-activity I-125 seed. A gamma probe was used in theatre to localise the signal from the seed and guide excision. Successful removal of the lesions was confirmed with the probe and by specimen radiography. Radioguided Occult Lesion Localisation using I-125 Seeds (“ROLLIS”) provides a method of precisely marking impalpable lesions for surgical excision.

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