Figure 4.

Schematic representation of possible generation of the 4-way t(3;9;17;22). (A) Formation of the t(9;22)(q34, q11). (B) Three-way translocation involving the EVI1 locus on 3q26, part of the distal long arm of chromosome 17 and the der(9)t(9;22). (C) Representation of the derivative chromosomes 3, 9, 17 and 22 in our patient.