Fig. 55. Reactive lymphoid hyperplasia of the uvea. An infiltrate of well-differentiated lymphocytes thickens the choroid. The paler focus is a large germinal center. Additional foci of lymphoid cells were present on the epibulbar surface of the eye. Reactive lymphoid hyperplasia of the uvea is now thought to be a low-grade lymphoid neoplasm. (Hematoxylin-eosin, × 50.)