“…Fifty to eighty per cent of the recurrences are diagnosed within the first 5 years (Reichart et al, 1995;Olaitan et al, 1998), but even after more than 30 years, recurrences have been described, partly following osteoplastic defect reconstruction (Hayward, 1973;Collings and Harrison, 1993;Vasan, 1995). Based on retrospective studies with varying numbers of cases, it is assumed that the rates of recurrence vary, depending on the site of the tumour, its histology and the radicality of the surgical therapy (Hatada et al, 1999;Nakamura et al, 2002). The radicality of surgery generally conforms to the clinical and radiological diagnostic findings as well as to the histology obtained from the incisional biopsy.…”