A case of hyperplastic polyposis in a 29 years old man, is presented, because of its rarity, the presence of pure adenomas and mixed metaplastic/adenomatous polyps (serrated adenomas) and the therapeutic problems, which were raised by those findings.

Key words: Hyperplastic polyposis syndrome, adenomas, mixed polyps, therapy

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Hellenic Archives of Pathology, 1994, 8(3): 171-174