Table 1.

Frequency of Ploidy Groups in Adult ALL Compared With Childhood ALL

Ploidy Group Frequency in:
Adult ALL (%) Childhood ALL (%)
Normal karyotype 26-34  8-56  
Hypodiploid <46  2-8  5-6 
Pseudodiploid  7-59  3-42  
Hyperdiploid 47-50  7-17 8-16  
Hyperdiploid >50  4-9  14-27 
Near triploidy  3  <1 
Near tetraploidy  2  
Ploidy Group Frequency in:
Adult ALL (%) Childhood ALL (%)
Normal karyotype 26-34  8-56  
Hypodiploid <46  2-8  5-6 
Pseudodiploid  7-59  3-42  
Hyperdiploid 47-50  7-17 8-16  
Hyperdiploid >50  4-9  14-27 
Near triploidy  3  <1 
Near tetraploidy  2  

Data from references 7, 8, 15, 18, 26, 27, 32, and 37.

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