objective: erythrasma is a chronic superficial infection of the intertriginous areas. most laboratories use methylene blue stain and 10% koh smear to identify corynebacterium minutissimum (c. minutissimum) by direct observation of filamentous bacilli. occasionally atypical forms can be seen that create problems in diagnosis. this study aims to use the polymerase chain reaction (pcr) method in o...