Figure 3From: Primary diffuse large B-cell lymphoma developing within a rectal tubular adenoma with low-grade dysplasia: a case report Agarose gel electrophoresis to detect the rearrangement of the immunoglobulin heavy chain semi-nested polymerase chain reaction products. Lane MK (marker): Deoxyribonucleic acid (DNA) ladder (100-bp to 1000-bp fragments); lane 1: negative control (no DNA); lane 2: patient sample; lane 3 monoclonal control; lane 4: polyclonal control. A positive β-globin amplification was performed (lane not shown).Back to article page