Recurring chromosomal abnormalities considered as presumptive evidence of MDS in the setting of persistent cytopenia of undetermined origin, but in the absence of definitive morphologic features of MDS
| Unbalanced abnormalities . | Balanced abnormalities . |
|---|---|
| −7 or del(7q) | t(11;16)(q23;p13.3) |
| −5 or del(5q) | t(3;21)(q26.2;q22.1) |
| i(17q) or t(17p) | t(1;3)(p36.3;q21.1) |
| −13 or del(13q) | t(2;11)(p21;q23) |
| del(11q) | inv(3)(q21q26.2) |
| del(12p) or t(12p) | t(6;9)(p23;q34) |
| del(9q) | |
| idic(X)(q13) |
| Unbalanced abnormalities . | Balanced abnormalities . |
|---|---|
| −7 or del(7q) | t(11;16)(q23;p13.3) |
| −5 or del(5q) | t(3;21)(q26.2;q22.1) |
| i(17q) or t(17p) | t(1;3)(p36.3;q21.1) |
| −13 or del(13q) | t(2;11)(p21;q23) |
| del(11q) | inv(3)(q21q26.2) |
| del(12p) or t(12p) | t(6;9)(p23;q34) |
| del(9q) | |
| idic(X)(q13) |
Complex karyotype (3 or more chromosomal abnormalities) involving one or more of the above abnormalities.