Virtual biopsy probe system is 'almost perfect' in detecting precancerous polyps during colonoscopy

The newest generation of "virtual biopsy" colonoscopy probes being tested demonstrate that it might soon be possible to use such a device to determine whether a colon polyp is benign and not remove it for biopsy. Currently, all colon polyps are extracted during a colonoscopy and sent to a pathologist for examination, which adds time, expense, and some surgical risk, to the procedure.

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