The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above.

Evidence of Benefit

Added text to state that in a population-based pilot study in Finland, guaiac FOBT screening was found to be impractical due to low specificity and its attendant costs (cited Malila et al. as reference 25).

Added text to state that the overall detection rate of adenomas and cancer may be affected by how thoroughly endoscopists search for "flat adenomas" and "flat cancer" (cited Soetikno et al. as reference 60, Lieberman as reference 61, and Robertson et al. as reference 62).

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