E Kim, et al. A CASE OF PIOL TREATED BY INTRAVITREAL MTX OD OS Fig. 3. Fluorescein angiography shows a granular pattern and leakage from vessels in the left eye. Fig. 4. (A) H-E stain of the preretinal membrane shows a diffuse infiltration of atypically large lymphoid cells (×400). (B) CD20 immunostain- ing shows diffuse strong immunoreactivities in the tumor cells (×400). A OD B OS Fig. 5. Toxic epithelial keratopathy is seen in both eyes. 213