TP53 and mismatch repair cancer syndrome 1: However, MMR deficiency and TP53 overexpression were more frequent and expressions of intestinal phenotypic markers were less frequent in “non‐atrophic” type II AEGs than in the combined type III AEGs plus GCs group (P = 0.003, 0.011, and 0.012, respectively), although these differences did not reach statistical significance when type III AEGs and GCs were analyzed separately.