P3‐439: NEUROPATHOLOGICAL EVIDENCE OF FOCAL CORTICAL DYSPLASIA IN LOGOPENIC VARIANT PRIMARY PROGRESSIVE APHASIA WITH DYSLEXIA AND ALZHEIMER'S DISEASE. (1st July 2019) - Spina, Salvatore; Miller, Zachary A.; Pakvasa, Mikhail; Rosenberg, Lynne M.; Rabinovici, Gil D.; Rosen, Howard J.; Grinberg, Lea T.; Miller, Bruce L.; Seeley, William W.; Gorno Tempini, Maria Luisa