Is the rate of frozen section discordance affected by subspecialty sign out? A quality improvement study

Background: Monitoring frozen section (FS) and final permanent section (PS) correlation is a valuable quality assurance metric in surgical pathology. The discordant FSs, at our institution, are categorized as minor if there is little or no perceived or actual clinical significance and major if there is major or potentially major clinical significance, which is determined by the final sign out pathologist. We sought to determine if the subspecialty sign out (SSSO) model, which was instituted in July of 2015, has adversely impacted our discordance rate.