Fig. 3
A The retina is infiltrated with numerous lymphocytes (hematoxylin and eosin ×25). B The lymphocytic infiltrate includes small lymphocytes and larger lymphocytes with higher nuclear to cytoplasmic ratios (hematoxylin and eosin ×100). C Immunohistochemical stains are positive for CD20 in the lymphocytes (peroxidase anti-peroxidase ×100)