Etiology of colonic strictures in South African black and Indian patients

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Abstract
The etiology of colonic strictures in 263 South African black and Indian patients is presented. Nonmalignant lesions accounted for strictures in 2/3 of the patients and included amebiasis (27), tuberculosis (24), nonspecific colitis (30), ulcerative colitis/Crohn''s colitis (11) and other lesions (36). Malignant lesions caused strictures in .apprx. 1/3 of the black and Indian patients, which is higher than in other reported series in blacks. Accurate clinical diagnosis is difficult and early histologic confirmation is mandatory in order to institute rational management. Strictures of the right colon in the black population are apparently benign, except in younger patients. Left-sided colonic strictures have an equal chance of being benign or malignant and early histologic confirmation is essential. The coexistence of an underlying malignant lesion in association with an inflammatory lesion in an endemic area should always be considered, particularly if it fails to respond to empirical therapy within a short period of time.