Final histological
diagnosis
Number of specimens/
slides for each lesion
Correct CNB diagnosis
without clinical history
Correct CNB diagnosis
with clinical history
FIH 1 6 5 6
FIH 2 12 6 9
FIH 3 21 1 15
FIH 4 8 3 8
FIH 5 8 4 6
CGCG 3 0 0
PGCG 6 5 5
Total 64 24 (37.5%) 49 (76.6%)

FIH = fibrous inflammatory hyperplasia; CGCG = central giant cell granuloma; PGCG = peripheral giant cell granuloma.