The objectives of this study were to determine the circumstances and to evaluate the diagnosis and operative strategies. This was a 12-year cross-sectional, from November 1^st, 1996, to October 31st 2007, concerning the folders of treated patients for histologically confirmed ovarian cancer. The variables were quantitative and qualitative. The evaluation of diagnosis methods with negative predictive value (NPV) and the relation between two variables using Chi2. Epi info 7 were used analysis. We collected 52 confirmed cases of cancer from 423(12.29%) ovarian cysts. The patients were pauciparous (38.46%), aged 45 years and over (80.77%), with extremes of 14 and 70 years. Pelvic pain and urinary disorders were the main functional signs in 100%. The diagnosis ultra sono graphic and anatomy-pathological correlation was 41/46 malignancy confirmations, i.e a NPV of 89.13%, a sensitivity of 78.84% and a specificity of 98.66%. CA 125 values ??greater than 35 IU / ml were correlated in 27/34 (79.41%), including 17 Positive Predictive Value (PPV) serous cystadenocarcinomas of 71.05%, a sensitivity of 79% and a specificity of 90.43%. Total hysterectomy was performed in 38 cases, 73.08%. Death was recorded in 11 cases (21.15%). The poor prognosis is linked to the.