Table 1.

Frequency of Recurring Chromosome Abnormalities

Abnormality No. %Other Abnormalities Present*
t(9;22)t(14q11-q13) Other None
t(9;22)(q34;q11) 6728.6 2 46 21
+21 32 13.716 2 30 2
+8 23 9.8 12 2 211
t(4;11)(q21;q23) 17 7.3 0 0 7 10
−7 14 6.0 9 0 9 0
del(9p) or t(9p)28 12.0 8 2 24 3
del(12p) or t(12p) 135.5 2 0 13 0
t(14q11-q13) 11 4.72 8 3
t(14q32) not t(8;14) 9 3.80 1 9 0
del(6q) 7 3.0 0 0 43
  • * A given patient might have several abnormalities present, eg, a patient with t(14q11-q13) had t(9;22) and other abnormalities.

  • Includes 1 patient with inv(14)(q11q32) and 4 patients with t(10;14)(q24;q11).