When assessing red eyes, feel for pre-auricular lymph node enlargement. The presence of pre-auricular lymphadenopathy is usually indicative of viral conjunctivitis, not bacterial conjunctivitis. — Robert Mitchelson, PA, Maricopa, Ariz. (188-7)

These are letters from practitioners around the country who want to share their clinical problems and successes, observations and pearls with their colleagues. We invite you to participate. If you have a clinical pearl, submit it here.