Two unrelated clonal chromosome rearrangements in a nasal papilloma

We have cytogenetically examined short-term cultures from a nasal papilloma, a tumor type in which chromosome aberrations have hitherto not been reported. Two pseudodiploid clones were detected, giving the tumor karyotype 46,XY,t(1;3)(p31;p12)/46,XY,t(11;?)(q25;?).