Abstract: Standardized residency training is the main form of postgraduate medical education. In this article, we analyzed a delayed diagnosed case with Cushing syndrome. The patient saw the doctors in provincial level hospitals for many times within a year, while specialists missed diagnosis by only concerning the symptoms related to their own specialties, instead of integrating all the manifestations. We draw the conclusion that standardized residency training provides residents a broader horizon of related specialties, which is irreplaceable by fellowship training program, and is the essential of comprehensive analysis of complex clinical situations. Standardized residency training will also be helpful for diminishment of the educational gap between different medical colleges and improvement the medical level of the whole nation.

Key words: standardized residency training, resident