Diffuse large cell (Kiel-1) lymphoma with a t(9;11)(p21–22;813) and a missing Y as the only chromosome changes

We describe a diffuse large cell (Kiel-1) lymphoma in a 76-year-old man that is noteworthy because, apart from a missing Y, the only chromosome change was a hitherto undescribed reciprocal translocation, t(9;11)(p21–22;813). It is interesting that the breakpoints lay in the vicinity of genes that encode proteins engaged in cell cycle control: CCND1 situated at 11q13 and p15 and p16 at 9p21.