Summary
An unusual form of colorectal polyposis is described displaying juvenile, adenomatous and mixed patterns in a 17-year-old girl. Although juvenile polyposis is generally considered to be non-neoplastic in nature, in both the present and in other case reports histological findings support a neoplastic nature. Since an increase in the incidence of large bowel carcinomas has been found in subjects with a previous diagnosis of juvenile polyposis, these patients should be considered to be at risk, and submitted to follow up.
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Monga, G., Mazzucco, G., Rossini, F.P. et al. Colorectal polyposis with mixed juvenile and adenomatous patterns. Virchows Arch. A Path. Anat. and Histol. 382, 355–360 (1979). https://doi.org/10.1007/BF00430411
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DOI: https://doi.org/10.1007/BF00430411