Lipoblastoma is a rare benign adipose tumor which, in all of the cases
so far described, presents an involvement of chromosome 8 in the regi
on 8q11-23. We hereby report the results of the second case of lipobla
stoma studied by fluorescence in situ hybridization (FISH), in a 13-mo
nth-old boy. An abnormal karyotype 46,XY,t(7;8)(q31;q13) was found in
90% of the metaphases examined, in agreement with the previously repor
ted observations. We suggest the region 8q11-23 may contain a relevant
locus for lipoblastoma origin. (C) Elsevier Science Inc., 1998.