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EDINBURGH - A new set of clinical criteria-embodied in a Web-based tool-improves the ability of oncologists to diagnose patients with Lynch syndrome, according to Scottish researchers.

BALTIMORE ? Don't let the bedbug's bite go misdiagnosed, pediatric dermatologists here advise. A simple set of diagnostic principles may help to determine whether a child's rash comes from bedbug or flea bites, or something else.

DENVER - Treatment decisions for localized prostate cancer tend to be driven more by patients' fears and misconceptions rather than by understanding of the evidence, according to accounts of newly diagnosed patients.

NEW YORK - Blood that has been awaiting use in a hospital for several weeks has been associated with a higher risk of complications in patients undergoing repeat cardiac surgery.

NEW HAVEN, Conn. - Preserved placentas from children later diagnosed with autism contained cellular abnormalities that could be the earliest signs of the condition.

PARIS ? Diagnostic chest x-rays apparently bestow an increased risk of breast-cancer in women with mutations in BRCA susceptibility genes.

ROME - Cell phone signals alter the excitability of the nearby motor cortex, according to researchers here, who don't know what the finding means, if anything.

PRAGUE, Czech Republic - Many women awaiting in-vitro fertilization (IVF) would prefer to have a child with cerebral palsy or other birth defects rather than have no child at all, according to a study presented here.

AMSTERDAM ? Two-year data from the extension of a major trial of Orencia (abatacept) suggest that the agent continued to prevent the advance of structural damage in rheumatoid arthritis, researchers reported here.

GALVESTON, Tex. - Whether a man with prostate cancer is treated with androgen deprivation may depend more on his choice of urologist than on the nature of his tumor or his age, researchers here suggested.

LOS ANGELES - The alkylating chemotherapy agent Cytoxan (cylcophosphamide) can produce small but significant improvements in lung function in patients with scleroderma, but its toxicities must be weighed against its potential benefits.

PRAGUE, Czech Republic ? Rapid cryopreservation of human eggs may have a future in substantially extending the practical limits on women's fertility, according to early Japanese clinical research reported here.

BURLINGTON, Vt. - A tart cherry juice blend drunk before and after bouts of strenuous exercise appears to ease the pain of sore muscles, according to a small crossover study.

SALT LAKE CITY - Americans aren't having nightmares-or dreams of any kind-that replay the 9/11 attack on New York, according to sleep researchers.

SAN FRANCISCO ? Women in their Medicare years may claim to have regular screening mammograms but many aren't as good as their word, a study has found.

NASHVILLE, Tenn. - If the U.S. states with loose seat belt laws tightened them, the disparity in seat belt use between blacks and whites might be eliminated, researchers here said.

REYKJAVIK, Iceland - Women with a newly discovered genetic mutation have a higher risk of developing breast cancer, perhaps more than one primary, researchers have reported.

SEATTLE - Sudden cardiac arrest was fatal in eight of nine college athletes who had witnessed events, despite the rapid efforts of athletic trainers, EMS personnel, and the ready availability of automated external defibrillators.