Pediatric supratentorial ependymomas show more frequent deletions on chromosome 9 than infratentorial ependymomas: a microsatellite analysis.

Numerous human malignancies, including brain tumors, have been reported to show aberrations on chromosome 9. In our previous screening study in ependymomas, we used microsatellite analysis to identify frequent aberrations on this chromosome. To refine our preliminary analysis of candidate regions, here we use 15 polymorphic microsatellite markers spanning the entire chromosome 9.