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Colorectal cancer in Brazzaville, Congo. A hospital-based study of 210 cases


Colorectal cancer in Brazzaville, Congo. A hospital-based study of 210 cases



Semaine des Hopitaux 75(35-36): 1316-1320, Dec 9-23



ISSN/ISBN: 0037-1777

A retrospective study was conducted to evaluate the frequency of colorectal cancer in the patient population of Congolese hospitals, to delineate their clinico-pathological characteristics, and to look for risk factors. A total of 210 cases of colorectal cancer seen over a 17-year period (1980-1996) were included. The diagnosis was based on histological findings (n=118), radiological and/or endoscopic findings (n=52), intraoperative findings (n=24), or a constellation of clinical and laboratory test findings (n=16). Colorectal cancer contributed to 5.5% of all cancers and 63.2% of gastrointestinal tract cancers during the study period. None of the patients had precancerous lesions. Mean age was only 46 years in the patients with colon cancer and 49 years in those with rectal cancer; 36.0% of patients were younger than 40 years of age. A male bias was noted. Rectal cancer was more common than colon cancer, and adenocarcinoma was the most common histological type. These data suggest that colorectal cancer is infrequent in the Congo and that etiopathogenic factors specific to tropical climates may explain the frequently young patient age and the absence of precancerous lesions.

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Accession: 003683256

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