%0 Journal Article
%T Evaluation of multiple primary tumors and single tumors charecteristics: a study from hospital-based cancer registry in  zmir
%A Sevil £¿a£¿£¿ran KIL£¿IKSIZ
%A Canan KAYNAK
%A Erkan E£¿K£¿
%A £¿zlem YERSAL
%J Turkish Journal of Oncology
%D 2007
%I KARE Publishing
%X OBJECTIVES: To evaluate patients with multiple primary tumors (MPTs) from the data of Izmir Cancer Registry (ICR) in Izmir Atat¨¹rk Research and Training Hospital (IAEAH) and to compare them with single tumor (ST). METHODS: 572 multiple primary tumors (MPTs) (286 patients) out of 20.895 tumors recorded during the period of 1993-2005 by office of ICR located in IAEAH were analyzed. Double tumors (DTs) were analyzed. Chi-square test and Independent Samples t-test were performed by SPSS 10.0. RESULTS: Of patients with MPTs 53.2% had synchronous whereas 43.1% had metachronous. The mean age were 55.81¡À15.4 years for ST group; 61.49¡À13.32 for DT group (p<0.001). Urogenital tumors (30.9%) and skin tumors (17.1%) in DTs group were higher than ST group statistically. The mean interval of DT was 44.4¡À30.82 (38.99-49.77) months. CONCLUSION: Field cancerization, theory of a common clonal origin or screening effect may account for the relatively frequent association of urogenital tumors.
%K Tumor
%K multiple primaries
%K single primary
%K cancer registry.
%U http://onkder.org/pdf.php3?id=631