Figure 2.

This endometrial adenocarcinoma was graded as Federation of Gynecology and Obstetrics Grade I on the original frozen section, but Federation of Gynecology and Obstetrics Grade II on the whole slide imaging, therefore representing a minor discrepancy. The permanent sections for the case were ultimately considered Federation of Gynecology and Obstetrics Grade II. Use of annotation tools in the viewing application for the whole slide imaging makes it easier to measure the depth of invasion than estimation via light microscopy