General epidemiologic colorectal cancer profile in Oncologos del Occidente from Colombia, South America.

Abstract

e14693 Background: The Colorectal Cancer is one of the most common cancer in the US and the fourth cancer for the developing countries like in our area. Methods: This is a preliminary and partial report of a retrospective analysis from our cancer records in Oncologos del Occidente a Private Oncologic Cancer Center from Colombia. Results: 663 patients (50% of final report) from January 1997 to June 2012 with Colon Cancer 306(46%), Rectal Cancer 309(47%) y Anal Cancer (7%); 51% female; median age 60(range 16-92. sd:13.929); Urban Area 91%. Clinical stage I (7%), IIA (19%), IIB (3%), IIIA (5%), IIIB (13%) and IIIC (10%), IV (11%), Adenocarcinoma 81%, Mucinous (8%); Well differentiated (63%), Poorly differentiated (7%); pretreatment Carcino-embryonic antigen mean 32.778 ng/ml (range 0.18-550.0), Adverse prognostic factors were Obstruction (39%), Ulceration (31%), Lymph Vascular Invasion (10%), T4 Stage (5%), Perforation (4%), Positive Surgical Margin (2%) with two factors 21% and three factors 7%; Low rectal cancer was 90%, Non-Surgical treatment was Chemotherapy (CT) (37%), CT/Radiotherapy (RT) (35%), CT and RT (8%), RT (3%), None (16%); preoperative treatment 37%, First line CT was based on 5FU/LV (52%); 20% relapsed and the main recurrence pattern was Local-marginal (25%), Liver (17%), Pelvic peritoneal (3%), Carcinomatosis (8%) and Lung (23); Rescue treatment was CT (10%), Surgery+CT (1%), CT+RT (1%) and Surgery (1%); the main rescue CT was Folfox 2%, 5FU/LV (3%), Capecitabine (3%), Mixed 6%; Surgical Lymph nodes mean excised was 10.037 (0-38 SD.7.554) and positive nodes mean was 1.972(0-29 SD 3.503); Overall Survival at 5 years for Colon cancer is 63% and 53% to 10 years and Rectal cancer to 5 and 10 years is 45% and 36% respectively (p=0.001). Conclusions: These results reflect the colorectal cancer behavior in a specific area of Colombia and the importance of a multidisciplinary work.