A retrospective study of gastrointestinal tract (GIT) tumors of humans in Zaria was carried out to determine the prevalence rates. Of the 124 human cases recorded in Ahmadu Bello University Teaching Hospital (ABUTH) Zaria, 39 (31.45%) had upper GIT tumors while 42 (33.87%) had tumors located in the lower GIT. All age groups were affected. The risk for developing tumors increased with age in cases studied. The affected age groups varied from 0.75 to 89 years with median of 44.5 years. Males were over represented with sex ratio of 1.5:1. Adenocarcinomas and squamous cell carcinomas were predominant.
Key words: Gastrointestinal tract, tumors, humans, Zaria.
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