Table 2

Pattern of 3p alterations in oral dysplasias and OSCCs

Whole arm loss,* %Segmental alterations,* %No genetic change,* %Mean size of loss, Mbp
LGDs (n = 24)037.5 (9)62.5 (15)41.9
Nonprogressing LGDs (n = 15)013.3 (2)86.7 (13)0.78
Progressing LGDs (n = 9)077.8 (7)22.2 (2)53.7
HGDs (n = 47)25.5 (12)55.3 (26)19.1 (9)67.5
OSCCs (n = 23)82.6 (19)17.4 (4)083.5
  • *Numbers of cases are given in parentheses.

  • LGDs are categorized into nonprogressing and progressing LGDs (see Materials and Methods).