Figures
![Figure 1.](/tables/jmc345w-g001.jpg)
Figure 1. Low power view of portal tract lymphoma stained with haematoxylin and eosin.
![Figure 2.](/tables/jmc345w-g002.jpg)
Figure 2. Low power view of liver parenchymal lymphoma stained with haematoxylin and eosin.
![Figure 3.](/tables/jmc345w-g003.jpg)
Figure 3. Liver biopsy showing a higher power of the lymphoma cells which have hyperchromatic nuclei and little cytoplasm.
![Figure 4.](/tables/jmc345w-g004.jpg)
Figure 4. Liver biopsy immunostained for CD20, the usual B lymphocyte marker. Shows strong membrane and cytoplasmic positivity confirms that this is a B cell lymphoid proliferation.
![Figure 5.](/tables/jmc345w-g005.jpg)
Figure 5. Liver biopsy stained for CD3, a T cell marker which is negative in the tumor cells. There is aberrant staining in hepatocytes due to incomplete blocking of endogenous peroxidases in the cells.
![Figure 6.](/tables/jmc345w-g006.jpg)
Figure 6. Liver biopsy stained for Mib-1 (Ki 67), a proliferation marker which is positive in the nuclei of cells in the mitotic cycle. In this case the proliferation index is nearly 100%, a finding associated with very aggressive lymphomas including Burkitts lymphoma and other diffuse large B cell lymphomas.