Chromosome 12p deletions in presentation and relapse.

Schematic representation of chromosome 12p showing the position of microsatellite markers and boundaries of deletion (LOH; ○) in presentation or relapse compared to remission samples. ● indicates present; , not informative. SCDR is the shortest commonly deleted region.50 The microsatellite instability in patient 3 (⊙) is marked with a star.