An alpha-beta intraepithelial T cell with the phenotype CD8-alpha-alpha-positive located in the columnar epithelium of the gastrointestinal tract. These cells have a memory phenotype of CD2-negative and CD5-negative. [ GOC:pam http://purl.obolibrary.org/obo/go/references/0000031 GOC:add http://www.ncbi.nlm.nih.gov/pubmed/11685222 ]