Amy Y-Y Chen

Are You Confident of the Diagnosis? Acrodermatitis continua of Hallopeau (ACH), a rare and chronic eruption of sterile pustules associated with hyperkeratosis and skin atrophy on the distal fingers and toes, is considered by many to be a localized variant of pustular psoriasis. The name is attributed to French dermatologist Francois Hallopeau, who described a…

Are You Confident of the Diagnosis? What you should be alert for in the history The classic triad of arthritis, urethritis, and conjunctivitis became known as ‘Reiter’s disease’ after a large number of cases were reported during World War I and II. The condition was named for Hans Reiter, who published a case in 1916,…

Are You Confident of the Diagnosis? What you should be alert for in the history The diagnosis of PRP can best be made using several well-described clinical features of the most common form, type 1 or classic adult. Patients describe rough, perifollicular, erythematous papules that coalesce to form large, scaly plaques. Patients present with a…