According to the (tissue-based) Cancer Genome Atlas (TCGA) project, TP53 heterozygous deletions are moderately common in PCa, occurring in approximately one third of cases, but significantly less frequently than in other common solid tumors such as breast adenocarcinoma (51%) or rectal adenocarcinoma (64%) [154]. The gene discussed is TP53; the disease is posterior cortical atrophy.