STR analysis evidenced a loss of heterozygosity on 18q21. Analysis of a representative marker of 18q21 (microsatellite D18S858) is shown. The carcinomatous (A) and sarcomatous (B) components shared an almost complete loss of the second allele (arrow) in comparison to the normal (C) counterpart.
Ambrosini-Spaltro et al. BMC Cancer 2006 6:185 doi:10.1186/1471-2407-6-185