Purpose: The aim of this study is to retrospectively assess the contrubition of the minimal preparation CT to the diagnosis of colorectal cancer in the patients who were refered to department of gatroenterology with colorectal cancer prediagnosis and have consequent colonoscopically visible mass and histopathological proof. Materials and methods: 100 consecutive cases referred from department of gastroenterology between september 2008 and december 2012 with confirmed colonoscopical mass

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... opical mass diagnosis were included to our study (Age range: 18-90 Sex: females 41 and 59 males). Radiological findings were statistically compared with pathological findings as a gold standard. Results: Of these patients with coloscopically visible mass, minimal preparation CT revealed asymmetric wall thickening(n:89)