the only chromosome change in common between the nevi with abnormal karyotypes and the melanomas was the loss of one copy of chromosome 9 ( two of four nevi and four of 11 melanomas , including three from the same patient ) or the loss of the short arm of chromosome 9 , especially of region 9pter-p22 ( three of 11 melanomas ) .
C0008633
chromosome
C1515492
short