background: colorectal cancers (crcs) including colon, rectum and anal cancers are the third most prevalent cancers in the world. there are strong evidence showing the risk of the cigarette smoking, alcohol use, low physical activity and some types of diets in crcs; however, few studies explored the relationship between opium use and crcs. this study aimed to investigate the association between...

background: in view of high prevalence of gi cancers in lorestan province, western iran, and a large number of esophageal cancer patients in this region, this study was done to determine the frequency of various gi cancers in the area. â  methods: in a cross-sectional study, all patients from lorestan province for whom endoscoppy and colonoscopy were performed and biopsy was provided entered ou...

Background: Common cancers such as colon, breast, and lung cancer are increasing in developing countries. Objective: This study was conducted to determine 10-year trends and changes in common cancers in patients from a referral hospital in Tehran, Iran. Methods: This cross-sectional study investigated a study population comprising colon, stom...

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Background: Gastrointestinal (GI) malignancies are the most common cancers and account for nearly half of all cancer-related deaths in Iran. There was a strong association between human papillomavirus (HPV) infection and urogenital cancers, in particular the cervix. However, there is no clear causal relationship in all types of cancers, including gastrointestinal cancers. Therefore, the present...