Figure 7From: Histopathological grading of pediatric ependymoma: reproducibility and clinical relevance in European trial cohortsGrading of ependymomas in three European trials by five neuropathologists (phase 3 of study). (a) Proportions of tumors classified as grade II (dark gray) or grade III (light gray) among trial cohorts. (b) Proportions of tumors classified as grade II (dark gray) or grade III (light gray) in two trial cohorts (SFOP & CNS9904) before (phase 1; pre-TR) or after (phase 3; post-TR) review of CNS9204 cohort in phase 2 of study (TR). (c) Proportions of tumors in three trial cohorts for which at least 4 of the 5 neuropathologists agreed on grade.Back to article page