James Chodosh, MD, and colleagues evaluated 29 patients who were treated within a 10-year period for ocular surface squamous neoplasia (OSSN), a type of cancer, either by surgical removal of the tumor or with topical interferon (alfa-2b).

Men whose prostate cancer screenings show high grade prostatic intraepithelial neoplasia (HG-PIN) may find themselves in limbo, “stuck” between diagnoses – they are told prostate cancer has not yet developed, but it might, and they are advised to undergo repeated needle biopsies as a precaution.

Flat, non-polypoid colorectal neoplasms (NP-CRNs), which may be difficult to detect, appear to be relatively common and may have a greater association with cancer compared with the more routinely diagnosed type of colorectal polyps, according to a study in the March 5 issue of JAMA.

Taking folic acid supplements does not reduce the risk of developing precancerous tumors in the colon and may even increase the risk, a new study has found.