Figure 2

Dot plot depicting distribution of scores for primary histologic pattern, (specific patterns are provided at left), of 35 invasive breast cancers evaluated by the 13 pathologists. The slide number of the individual breast cancer is provided above each boxed entry. Grids at top and bottom represent individual pathologists, with the reference standard at 1. If a specific histologic pattern is not identified by an individual pathologist as the primary pattern (eg lobular, pathologist 7 case 33), it is often identified as the secondary pattern (see Figure 3).