On the specificity of medium-sized isomarker chromosomes in non-Burkitt lymphomas.

The chromosomal observations by G-banding in an intestinal, histiocytic lymphoma are reported. The findings, as those in a series of about 10 other lymphomas, indicate a varying origin of medium-sized isomarkers; the results oppose the view that there exists a specific marker of this type in non-Burkitt lymphomas.