Radioguided localisation of non-palpable lesions of the breast in Costa Rica: review of results of our first 800 patients in private practice.

Background: Surgical treatment of non-palpable breast lesions is controversial. At the European Institute of Oncology in Milan, Italy, Prof Umberto Veronesi introduced a new technique called the radioguided occult lesion localisation (ROLL) in 1996 to replace conventional methods and their disadvantages (Zurrida S, Galimberti V, and Monti S (1998) 11-13 https://doi.org/10.