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[Conventional colonoscopy and colonography with magnetic resonance in the diagnosis of endoluminal lesions of the colon].

The diagnostic ability of Magnetic Resonance Colonography (MRC) in detecting colonic endoluminal masses was compared with that of conventional colonoscopy (CC) and related to the findings from histologic examination. In seventy consecutive patients MRC achieved a diagnostic accuracy similar to CC. Therefore MRC could be useful in screening patients at high risk for colonic cancer. However every patient with MRC-detected endoluminal lesion must undergo CC for histologic diagnosis.