in a review of karyotypes from 35 neuroblastomas ( including 29 published cases and 6 unpublished tumors and cell lines ) , it was found that , in addition to the abnormalities of chromosome 1p ( found in approximately 70 % of cases ) , abnormalities involving only 2 other chromosome segments occurred with significant frequency ( in 20 % or more of cases ) in this cancer .
C1327810
1p
C0008633
chromosome