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Figure 1
Dysmorphic facial features of the proband at the age of 6: a broad flat nose, down slanting palpebral fissures, hypertelorism, and mild ptosis are noted (permission of parents to publish the picture was obtained).
Figure 2
The marker chromosome revealed by conventional karyotyping at the age of 3 before pre-B-ALL developed is indicated by an arrow.
Figure 3
A de novo 6.6 Mb gain at 22q11.1-q11.22 chromosome region detected by SNP array (red arrow) at the age of 3 before pre-B-ALL developed. Genes that might play a role on oncogenesis in the area of duplication are displayed.