title: Radio-guided occult lesion localisation using iodine 125 Seeds "ROLLIS" to guide surgical removal of an impalpable posterior chest wall melanoma metastasis.
abstract: Cancer screening and surveillance programmes and the use of sophisticated imaging tools such as positron emission tomography-computed tomography (PET-CT) have increased the detection of impalpable lesions requiring imaging guidance for excision. A new technique involves intra-lesional insertion of a low-activity iodine-125 ((125)I) seed and detection of the radioactive signal in theatre using a hand-held gamma probe to guide surgery. Whilst several studies describe using this method to guide the removal of impalpable breast lesions, only a handful of publications report its use to guide excision of lesions outside the breast. We describe a case in which radio-guided occult lesion localisation using an iodine 125 seed was used to guide excision of an impalpable posterior chest wall metastasis detected on PET-CT.
authors.affiliation: Western Hospital Footscray, Victoria, Australia.
authors.forename: Shashini
authors.initials: S
authors.lastname: Dissanayake
authors.affiliation: Royal Perth Hospital Perth Perth, Western Australia, Australia.
authors.forename: Deepthi
authors.initials: D
authors.lastname: Dissanayake
authors.affiliation: Royal Perth Hospital Perth Perth, Western Australia, Australia ; School of Surgery, University of Western Australia, Crawley Western Australia, Australia.
authors.forename: Donna B
authors.initials: DB
authors.lastname: Taylor
keywords: Radioactive seed localisation; iodine seed localisation; iodine-125; radio-guided surgery