Interobserver Variability of Ki-67 Measurement in Breast Cancer

• Main Authors: Yul Ri Chung (Author), Min Hye Jang (Author), So Yeon Park (Author), Gyungyub Gong (Author), Woo-Hee Jung (Author)
• Format: Book
• Published: Korean Society of Pathologists & the Korean Society for Cytopathology, 2016-03-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Background: As measurement of Ki-67 proliferation index is an important part of breast cancer diagnostics, we conducted a multicenter study to examine the degree of concordance in Ki-67 counting and to find factors that lead to its variability. Methods: Thirty observers from thirty different institu...