Background. Ovarian cancers have been recently categorized into types I and II according to a dualistic model of tumorigenesis. Data on the correlation between this classification and clinical outcome are still scarce and controversial. Methods. A retrospective analysis of patients with ovarian cancer treated from 1998 to 2013 and operated by the same surgeon was conducted. Patients were classified into two groups: type I (125 patients), including low-grade serous, mucinous, endometrioid, and clear cell tumors; and type II (286 patients), including high-grade serous tumors, unspecified adenocarcinomas, and undifferentiated carcinomas. Results. Type II patients had a significantly higher incidence of advanced disease than type I (88.4 vs. 65.6 %, P = 0.0001) and required more aggressive surgical procedures. Rates of optimal tumor debulking were almost similar between groups (92.6 vs. 91.7 %, type I vs. II, P = NS). After a median follow-up of 41 months, 207 patients (50.4 %) were alive and 204 (49.6 %) were dead; 79 type I patients (63.8 %) and 237 type II patients (82.7 %) experienced relapse (P = 0.02). Progression-free survival was significantly different between groups: 25 months for type I vs. 17 months for type II (P = 0.023). Overall survival was not significantly different between groups, with a median overall survival of 75 months for type I vs. 62 months for type II (P = 0.116). Conclusions. The dualistic histotype-based classification into types I and II of ovarian cancer does not seem to correlate with prognosis. Different molecular characteristics of type I and II tumors may have therapeutic implications and should be deeply investigated. © 2014 Society of Surgical Oncology.

Panici, P. B., Marchetti, C., Salerno, L., Musella, A., Vertechy, L., Palaia, I., Perniola, G., Ruscito, I., Boni, T., Angioli, R., Muzii, L., Dualistic classification of epithelial ovarian cancer: Surgical and survival outcomes in a large retrospective series, <<ANNALS OF SURGICAL ONCOLOGY>>, n/a; 21 (9): 3036-3041. [doi:10.1245/s10434-014-3714-6] [http://hdl.handle.net/10807/203922]

Dualistic classification of epithelial ovarian cancer: Surgical and survival outcomes in a large retrospective series

Marchetti, Claudia;
2014

Abstract

Background. Ovarian cancers have been recently categorized into types I and II according to a dualistic model of tumorigenesis. Data on the correlation between this classification and clinical outcome are still scarce and controversial. Methods. A retrospective analysis of patients with ovarian cancer treated from 1998 to 2013 and operated by the same surgeon was conducted. Patients were classified into two groups: type I (125 patients), including low-grade serous, mucinous, endometrioid, and clear cell tumors; and type II (286 patients), including high-grade serous tumors, unspecified adenocarcinomas, and undifferentiated carcinomas. Results. Type II patients had a significantly higher incidence of advanced disease than type I (88.4 vs. 65.6 %, P = 0.0001) and required more aggressive surgical procedures. Rates of optimal tumor debulking were almost similar between groups (92.6 vs. 91.7 %, type I vs. II, P = NS). After a median follow-up of 41 months, 207 patients (50.4 %) were alive and 204 (49.6 %) were dead; 79 type I patients (63.8 %) and 237 type II patients (82.7 %) experienced relapse (P = 0.02). Progression-free survival was significantly different between groups: 25 months for type I vs. 17 months for type II (P = 0.023). Overall survival was not significantly different between groups, with a median overall survival of 75 months for type I vs. 62 months for type II (P = 0.116). Conclusions. The dualistic histotype-based classification into types I and II of ovarian cancer does not seem to correlate with prognosis. Different molecular characteristics of type I and II tumors may have therapeutic implications and should be deeply investigated. © 2014 Society of Surgical Oncology.
2014
Inglese
Panici, P. B., Marchetti, C., Salerno, L., Musella, A., Vertechy, L., Palaia, I., Perniola, G., Ruscito, I., Boni, T., Angioli, R., Muzii, L., Dualistic classification of epithelial ovarian cancer: Surgical and survival outcomes in a large retrospective series, <<ANNALS OF SURGICAL ONCOLOGY>>, n/a; 21 (9): 3036-3041. [doi:10.1245/s10434-014-3714-6] [http://hdl.handle.net/10807/203922]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/203922
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