Fig. 5

Flow cytometry performed on the specimen demonstrate a kappa-restricted B-cell population (a) and (b) co-expressing (c) CD5 and (d) are negative for CD23. e FISH studies using CCND1 (11q13 red); IGH (14q32 green) dual color-dual fusion probes - normal control, f FISH studies with lymphoma cells showing CCND1-IGH (yellow) fusion signal