Introduction: Esophageal cancer is diagnosed with more than 480,000 patients per year and this disease became the eighth most common cancer worldwide.
Aim: In this study, we tried to investigate the role of chemoradiotherapy in decreasing the severity of dysphagia and increasing the quality of life (QOL) in patients with esophageal cancer.
Methods: Patients were diagnosed with esophageal cancer, which were proven by pathological studies.
Objective: The increasing frequency of colorectal cancer in Asian countries, which have traditionally had a lower incidence than populations in developed countries, and a lower age of onset in Iran led us to perform a study on patients with colorectal cancer to investigate the clinical features of colorectal cancer in Iranians.
Methods: We studied 977 consecutive cases of colorectal cancer in terms of age, gender, and anatomic location during a 15-year period (1989-2004). The patients were hospitalized in three referral hospitals affiliated to Shahid Beheshti Medical University in Tehran, Iran.