The average numbers of CD8‐positive IELs were 7.0 per 100 surface epithelial cells (median 3.6, range 2.3–17.4) in CN with MC‐like features, and 7.9 (median 7.9, range 1.6–17.2) in CN with IBD‐like features. Here, CD8A is linked to inflammatory bowel disease.