[143] on 34 cases of PCa, MUC1 positive expression was observed in 32 cases (94%), and most cases (62%) exhibited diffuse cytoplasmic distribution of MUC1, and the pattern of MUC1 distribution was correlated with Gleason grade and clinical stage: cases with higher Gleason scores and advanced clinical stages showed predominantly diffuse expression. The gene discussed is MUC1; the disease is posterior cortical atrophy.