CD8A and telomere syndrome: Although a small number of tumors were devoid of intraepithelial CD8+ cells or intrastromal CD8+ cells (which was likely attributable to the small size of the tissue microarray [TMA] cores), we found no evidence of a distinct subgroup of tumors with substantial intrastromal values and negligible intraepithelial values overall or individually for the LTS, MTS, and STS groups (Figure 2).